Understanding Addition
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![Addition Worksheets - Matching Addition worksheet Addition Worksheets - Matching Addition worksheet](/math/addition/matching addition/english/thumb.png)
![Addition Worksheets - Matching Addition worksheet Addition Worksheets - Matching Addition worksheet](/math/addition/matching addition/english/thumb.png)
![Addition Worksheets - Which Equals worksheet Addition Worksheets - Which Equals worksheet](/math/addition/which equals/english/thumb.png)
![Addition Worksheets - Which Equals worksheet Addition Worksheets - Which Equals worksheet](/math/addition/which equals/english/thumb.png)
![Addition Worksheets - Addition Boxes (to ten) worksheet Addition Worksheets - Addition Boxes (to ten) worksheet](/math/addition/addition boxes/english/thumb.png)
![Addition Worksheets - Addition Boxes (to ten) worksheet Addition Worksheets - Addition Boxes (to ten) worksheet](/math/addition/addition boxes/english/thumb.png)
![Addition Worksheets - Finding 1 More and 1 Less worksheet Addition Worksheets - Finding 1 More and 1 Less worksheet](/math/addition/finding 1 more and 1 less/english/thumb.png)
![Addition Worksheets - Finding 1 More and 1 Less worksheet Addition Worksheets - Finding 1 More and 1 Less worksheet](/math/addition/finding 1 more and 1 less/english/thumb.png)
![Addition Worksheets - Adding to Ten worksheet Addition Worksheets - Adding to Ten worksheet](/math/addition/adding to ten/english/thumb.png)
![Addition Worksheets - Adding to Ten worksheet Addition Worksheets - Adding to Ten worksheet](/math/addition/adding to ten/english/thumb.png)
![Addition Worksheets - Breaking Apart Tens and Ones worksheet Addition Worksheets - Breaking Apart Tens and Ones worksheet](/math/addition/breaking apart tens and ones/english/thumb.png)
![Addition Worksheets - Breaking Apart Tens and Ones worksheet Addition Worksheets - Breaking Apart Tens and Ones worksheet](/math/addition/breaking apart tens and ones/english/thumb.png)
![Addition Worksheets - Counting Up and Down worksheet Addition Worksheets - Counting Up and Down worksheet](/math/addition/counting up and down/english/thumb.png)
![Addition Worksheets - Counting Up and Down worksheet Addition Worksheets - Counting Up and Down worksheet](/math/addition/counting up and down/english/thumb.png)
Traditional Addition
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![Addition Worksheets - Adding & Subtracting Within 5 worksheet Addition Worksheets - Adding & Subtracting Within 5 worksheet](/math/addition/adding within 5/english/thumb.png)
![Addition Worksheets - Adding & Subtracting Within 5 worksheet Addition Worksheets - Adding & Subtracting Within 5 worksheet](/math/addition/adding within 5/english/thumb.png)
![Addition Worksheets - Adding Within 20 worksheet Addition Worksheets - Adding Within 20 worksheet](/math/addition/adding within 20/english/thumb.png)
![Addition Worksheets - Adding Within 20 worksheet Addition Worksheets - Adding Within 20 worksheet](/math/addition/adding within 20/english/thumb.png)
![Addition Worksheets - Adding Within 20 (horizontal) worksheet Addition Worksheets - Adding Within 20 (horizontal) worksheet](/math/addition/adding within 20 (horizontal)/english/thumb.png)
![Addition Worksheets - Adding Within 20 (horizontal) worksheet Addition Worksheets - Adding Within 20 (horizontal) worksheet](/math/addition/adding within 20 (horizontal)/english/thumb.png)
![Addition Worksheets - Adding Within 100 worksheet Addition Worksheets - Adding Within 100 worksheet](/math/addition/within 100/english/thumb.png)
![Addition Worksheets - Adding Within 100 worksheet Addition Worksheets - Adding Within 100 worksheet](/math/addition/within 100/english/thumb.png)
![Addition Worksheets - Adding Within 100 (horizontal) worksheet Addition Worksheets - Adding Within 100 (horizontal) worksheet](/math/addition/within 100 horizontal/english/thumb.png)
![Addition Worksheets - Adding Within 100 (horizontal) worksheet Addition Worksheets - Adding Within 100 (horizontal) worksheet](/math/addition/within 100 horizontal/english/thumb.png)
![Addition Worksheets - Adding Multiples of Ten worksheet Addition Worksheets - Adding Multiples of Ten worksheet](/math/addition/adding multiples of ten/english/thumb.png)
![Addition Worksheets - Adding Multiples of Ten worksheet Addition Worksheets - Adding Multiples of Ten worksheet](/math/addition/adding multiples of ten/english/thumb.png)
![Addition Worksheets - Adding Multiples of Ten (Horizontal) worksheet Addition Worksheets - Adding Multiples of Ten (Horizontal) worksheet](/math/addition/adding multiples of ten (horizontal)/english/thumb.png)
![Addition Worksheets - Adding Multiples of Ten (Horizontal) worksheet Addition Worksheets - Adding Multiples of Ten (Horizontal) worksheet](/math/addition/adding multiples of ten (horizontal)/english/thumb.png)
![Addition Worksheets - Adding Multiples of Ten to Multiples of Ten worksheet Addition Worksheets - Adding Multiples of Ten to Multiples of Ten worksheet](/math/addition/adding multiples of ten to multiples of ten/english/thumb.png)
![Addition Worksheets - Adding Multiples of Ten to Multiples of Ten worksheet Addition Worksheets - Adding Multiples of Ten to Multiples of Ten worksheet](/math/addition/adding multiples of ten to multiples of ten/english/thumb.png)
![Addition Worksheets - Solving Mixed Problems within 20 (+ -) worksheet Addition Worksheets - Solving Mixed Problems within 20 (+ -) worksheet](/math/addition/solving mixed problems/english/thumb.png)
![Addition Worksheets - Solving Mixed Problems within 20 (+ -) worksheet Addition Worksheets - Solving Mixed Problems within 20 (+ -) worksheet](/math/addition/solving mixed problems/english/thumb.png)
![Addition Worksheets - Solving Mixed Problems within 100 (+ -) worksheet Addition Worksheets - Solving Mixed Problems within 100 (+ -) worksheet](/math/addition/solving mixed problems (within 100)/english/thumb.png)
![Addition Worksheets - Solving Mixed Problems within 100 (+ -) worksheet Addition Worksheets - Solving Mixed Problems within 100 (+ -) worksheet](/math/addition/solving mixed problems (within 100)/english/thumb.png)
![Addition Worksheets - Solving Mixed Problems within 1000 (+ -) worksheet Addition Worksheets - Solving Mixed Problems within 1000 (+ -) worksheet](/math/addition/solving mixed problems (within 1000)/english/thumb.png)
![Addition Worksheets - Solving Mixed Problems within 1000 (+ -) worksheet Addition Worksheets - Solving Mixed Problems within 1000 (+ -) worksheet](/math/addition/solving mixed problems (within 1000)/english/thumb.png)
![Addition Worksheets - Adding and Subtracting within 20 worksheet Addition Worksheets - Adding and Subtracting within 20 worksheet](/math/addition/adding and subtracting within 20/english/thumb.png)
![Addition Worksheets - Adding and Subtracting within 20 worksheet Addition Worksheets - Adding and Subtracting within 20 worksheet](/math/addition/adding and subtracting within 20/english/thumb.png)
![Addition Worksheets - Adding Within 1,000 worksheet Addition Worksheets - Adding Within 1,000 worksheet](/math/addition/within 1000/english/thumb.png)
![Addition Worksheets - Adding Within 1,000 worksheet Addition Worksheets - Adding Within 1,000 worksheet](/math/addition/within 1000/english/thumb.png)
![Addition Worksheets - 4 Digit Plus 4 Digit worksheet Addition Worksheets - 4 Digit Plus 4 Digit worksheet](/math/addition/4 digit plus 4 digit/english/thumb.png)
![Addition Worksheets - 4 Digit Plus 4 Digit worksheet Addition Worksheets - 4 Digit Plus 4 Digit worksheet](/math/addition/4 digit plus 4 digit/english/thumb.png)
![Addition Worksheets - 4 Digit Plus 4 Digit (horizontal) worksheet Addition Worksheets - 4 Digit Plus 4 Digit (horizontal) worksheet](/math/addition/4 digit plus 4 digit (horizontal)/english/thumb.png)
![Addition Worksheets - 4 Digit Plus 4 Digit (horizontal) worksheet Addition Worksheets - 4 Digit Plus 4 Digit (horizontal) worksheet](/math/addition/4 digit plus 4 digit (horizontal)/english/thumb.png)
![Addition Worksheets - Addition (Vertical) worksheet Addition Worksheets - Addition (Vertical) worksheet](/math/addition/addition (vertical)/english/thumb.png)
![Addition Worksheets - Addition (Vertical) worksheet Addition Worksheets - Addition (Vertical) worksheet](/math/addition/addition (vertical)/english/thumb.png)
![Addition Worksheets - Addition (Horizontal) worksheet Addition Worksheets - Addition (Horizontal) worksheet](/math/addition/addition (horizontal)/english/thumb.png)
![Addition Worksheets - Addition (Horizontal) worksheet Addition Worksheets - Addition (Horizontal) worksheet](/math/addition/addition (horizontal)/english/thumb.png)
![Addition Worksheets - Addition and Subtraction (Horizontal) worksheet Addition Worksheets - Addition and Subtraction (Horizontal) worksheet](/math/addition/addition and subtraction (horizontal)/english/thumb.png)
![Addition Worksheets - Addition and Subtraction (Horizontal) worksheet Addition Worksheets - Addition and Subtraction (Horizontal) worksheet](/math/addition/addition and subtraction (horizontal)/english/thumb.png)
![Addition Worksheets - Finding Missing Addend (Within 10) worksheet Addition Worksheets - Finding Missing Addend (Within 10) worksheet](/math/addition/finding missing addend (within 10)/english/thumb.png)
![Addition Worksheets - Finding Missing Addend (Within 10) worksheet Addition Worksheets - Finding Missing Addend (Within 10) worksheet](/math/addition/finding missing addend (within 10)/english/thumb.png)
![Addition Worksheets - Adding Multiples of Ten to Multiples of Ten worksheet Addition Worksheets - Adding Multiples of Ten to Multiples of Ten worksheet](/math/addition/adding to specific value/english/thumb.png)
![Addition Worksheets - Adding Multiples of Ten to Multiples of Ten worksheet Addition Worksheets - Adding Multiples of Ten to Multiples of Ten worksheet](/math/addition/adding to specific value/english/thumb.png)
![Addition Worksheets - Addition and Subtraction with Regrouping worksheet Addition Worksheets - Addition and Subtraction with Regrouping worksheet](/math/addition/addition and subtraction with regrouping/english/thumb.png)
![Addition Worksheets - Addition and Subtraction with Regrouping worksheet Addition Worksheets - Addition and Subtraction with Regrouping worksheet](/math/addition/addition and subtraction with regrouping/english/thumb.png)
Word Addition
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![Addition Worksheets - Word Addition Within 10 worksheet Addition Worksheets - Word Addition Within 10 worksheet](/math/addition/word addition within 10/english/thumb.png)
![Addition Worksheets - Word Addition Within 10 worksheet Addition Worksheets - Word Addition Within 10 worksheet](/math/addition/word addition within 10/english/thumb.png)
![Addition Worksheets - Word Addition Within 20 worksheet Addition Worksheets - Word Addition Within 20 worksheet](/math/addition/word addition within 20/english/thumb.png)
![Addition Worksheets - Word Addition Within 20 worksheet Addition Worksheets - Word Addition Within 20 worksheet](/math/addition/word addition within 20/english/thumb.png)
![Addition Worksheets - Word Addition Within 100 worksheet Addition Worksheets - Word Addition Within 100 worksheet](/math/addition/word addition within 100/english/thumb.png)
![Addition Worksheets - Word Addition Within 100 worksheet Addition Worksheets - Word Addition Within 100 worksheet](/math/addition/word addition within 100/english/thumb.png)
Finding Sum with Rounding
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![Addition Worksheets - Finding Sums with Rounding worksheet Addition Worksheets - Finding Sums with Rounding worksheet](/math/addition/rounding to sum/english/thumb.png)
![Addition Worksheets - Finding Sums with Rounding worksheet Addition Worksheets - Finding Sums with Rounding worksheet](/math/addition/rounding to sum/english/thumb.png)
Multiple Addends
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![Addition Worksheets - Adding with Multiple Addends (3 Addends Less than 20) worksheet Addition Worksheets - Adding with Multiple Addends (3 Addends Less than 20) worksheet](/math/addition/multiple addends (less than 20)/english/thumb.png)
![Addition Worksheets - Adding with Multiple Addends (3 Addends Less than 20) worksheet Addition Worksheets - Adding with Multiple Addends (3 Addends Less than 20) worksheet](/math/addition/multiple addends (less than 20)/english/thumb.png)
![Addition Worksheets - Adding Multiple Addends (3 Addends Less than 20) (horizontal) worksheet Addition Worksheets - Adding Multiple Addends (3 Addends Less than 20) (horizontal) worksheet](/math/addition/adding multiple addends (within 20)/english/thumb.png)
![Addition Worksheets - Adding Multiple Addends (3 Addends Less than 20) (horizontal) worksheet Addition Worksheets - Adding Multiple Addends (3 Addends Less than 20) (horizontal) worksheet](/math/addition/adding multiple addends (within 20)/english/thumb.png)
![Addition Worksheets - 3 Addends (Less than 20) Word worksheet Addition Worksheets - 3 Addends (Less than 20) Word worksheet](/math/addition/multiple addends (less than 20) word/english/thumb.png)
![Addition Worksheets - 3 Addends (Less than 20) Word worksheet Addition Worksheets - 3 Addends (Less than 20) Word worksheet](/math/addition/multiple addends (less than 20) word/english/thumb.png)
![Addition Worksheets - Combining Addends worksheet Addition Worksheets - Combining Addends worksheet](/math/addition/multiple addends - combining/english/thumb.png)
![Addition Worksheets - Combining Addends worksheet Addition Worksheets - Combining Addends worksheet](/math/addition/multiple addends - combining/english/thumb.png)
![Addition Worksheets - Three Addends (2 Digit) worksheet Addition Worksheets - Three Addends (2 Digit) worksheet](/math/addition/three addends (2 digit)/english/thumb.png)
![Addition Worksheets - Three Addends (2 Digit) worksheet Addition Worksheets - Three Addends (2 Digit) worksheet](/math/addition/three addends (2 digit)/english/thumb.png)
![Addition Worksheets - Four Addends (2 Digit) worksheet Addition Worksheets - Four Addends (2 Digit) worksheet](/math/addition/four addends (2 digit)/english/thumb.png)
![Addition Worksheets - Four Addends (2 Digit) worksheet Addition Worksheets - Four Addends (2 Digit) worksheet](/math/addition/four addends (2 digit)/english/thumb.png)
![Addition Worksheets - Multiple Addends (3 Digits) Word worksheet Addition Worksheets - Multiple Addends (3 Digits) Word worksheet](/math/addition/multiple addends (word)/english/thumb.png)
![Addition Worksheets - Multiple Addends (3 Digits) Word worksheet Addition Worksheets - Multiple Addends (3 Digits) Word worksheet](/math/addition/multiple addends (word)/english/thumb.png)
Addition Strategies
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![Addition Worksheets - Creating Tens worksheet Addition Worksheets - Creating Tens worksheet](/math/addition/creating tens/english/thumb.png)
![Addition Worksheets - Creating Tens worksheet Addition Worksheets - Creating Tens worksheet](/math/addition/creating tens/english/thumb.png)
![Addition Worksheets - Finding Equivalent Addition Problems with 10 worksheet Addition Worksheets - Finding Equivalent Addition Problems with 10 worksheet](/math/addition/finding equivalent addition problems with 10/english/thumb.png)
![Addition Worksheets - Finding Equivalent Addition Problems with 10 worksheet Addition Worksheets - Finding Equivalent Addition Problems with 10 worksheet](/math/addition/finding equivalent addition problems with 10/english/thumb.png)
![Addition Worksheets - Finding Missing Digit worksheet Addition Worksheets - Finding Missing Digit worksheet](/math/addition/finding missing digit/english/thumb.png)
![Addition Worksheets - Finding Missing Digit worksheet Addition Worksheets - Finding Missing Digit worksheet](/math/addition/finding missing digit/english/thumb.png)
![Addition Worksheets - Finding Sum with Rounding worksheet Addition Worksheets - Finding Sum with Rounding worksheet](/math/addition/finding sum with rounding/english/thumb.png)
![Addition Worksheets - Finding Sum with Rounding worksheet Addition Worksheets - Finding Sum with Rounding worksheet](/math/addition/finding sum with rounding/english/thumb.png)
![Addition Worksheets - Finding Sums with Rounding worksheet Addition Worksheets - Finding Sums with Rounding worksheet](/math/addition/rounding to sum/english/thumb.png)
![Addition Worksheets - Finding Sums with Rounding worksheet Addition Worksheets - Finding Sums with Rounding worksheet](/math/addition/rounding to sum/english/thumb.png)
![Addition Worksheets - Finding Sum And Differences with Numberlines worksheet Addition Worksheets - Finding Sum And Differences with Numberlines worksheet](/math/addition/adding and subtracting with numberlines/english/thumb.png)
![Addition Worksheets - Finding Sum And Differences with Numberlines worksheet Addition Worksheets - Finding Sum And Differences with Numberlines worksheet](/math/addition/adding and subtracting with numberlines/english/thumb.png)
![Addition Worksheets - Addition Strategies worksheet Addition Worksheets - Addition Strategies worksheet](/math/addition/addition strategies/english/thumb.png)
![Addition Worksheets - Addition Strategies worksheet Addition Worksheets - Addition Strategies worksheet](/math/addition/addition strategies/english/thumb.png)
![Addition Worksheets - Creating Equations worksheet Addition Worksheets - Creating Equations worksheet](/math/addition/creating equations/english/thumb.png)
![Addition Worksheets - Creating Equations worksheet Addition Worksheets - Creating Equations worksheet](/math/addition/creating equations/english/thumb.png)
![Addition Worksheets - Addition Using an Open Numberline worksheet Addition Worksheets - Addition Using an Open Numberline worksheet](/math/addition/addition using an open numberline/english/thumb.png)
![Addition Worksheets - Addition Using an Open Numberline worksheet Addition Worksheets - Addition Using an Open Numberline worksheet](/math/addition/addition using an open numberline/english/thumb.png)
Addition Drills
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![Addition Worksheets - Finding Ten More and Ten Less worksheet Addition Worksheets - Finding Ten More and Ten Less worksheet](/math/drills/ten more or ten less/english/thumb.png)
![Addition Worksheets - Finding Ten More and Ten Less worksheet Addition Worksheets - Finding Ten More and Ten Less worksheet](/math/drills/ten more or ten less/english/thumb.png)
![Addition Worksheets - Add and Subtract (Within 20) worksheet Addition Worksheets - Add and Subtract (Within 20) worksheet](/math/drills/add and subtract (within 20)/english/thumb.png)
![Addition Worksheets - Add and Subtract (Within 20) worksheet Addition Worksheets - Add and Subtract (Within 20) worksheet](/math/drills/add and subtract (within 20)/english/thumb.png)
![Addition Worksheets - Adding-Subtracting 10s and 100s worksheet Addition Worksheets - Adding-Subtracting 10s and 100s worksheet](/math/drills/adding-subtracting 10s and 100s/english/thumb.png)
![Addition Worksheets - Adding-Subtracting 10s and 100s worksheet Addition Worksheets - Adding-Subtracting 10s and 100s worksheet](/math/drills/adding-subtracting 10s and 100s/english/thumb.png)
![Addition Worksheets - Adding 9s worksheet Addition Worksheets - Adding 9s worksheet](/math/drills/adding 9s/english/thumb.png)
![Addition Worksheets - Adding 9s worksheet Addition Worksheets - Adding 9s worksheet](/math/drills/adding 9s/english/thumb.png)
![Addition Worksheets - Adding to Multiples of Ten worksheet Addition Worksheets - Adding to Multiples of Ten worksheet](/math/drills/adding to tens/english/thumb.png)
![Addition Worksheets - Adding to Multiples of Ten worksheet Addition Worksheets - Adding to Multiples of Ten worksheet](/math/drills/adding to tens/english/thumb.png)
![Addition Worksheets - 0s worksheet Addition Worksheets - 0s worksheet](/math/drills/addition 0s/english/thumb.png)
![Addition Worksheets - 0s worksheet Addition Worksheets - 0s worksheet](/math/drills/addition 0s/english/thumb.png)
![Addition Worksheets - 1s worksheet Addition Worksheets - 1s worksheet](/math/drills/addition 1s/english/thumb.png)
![Addition Worksheets - 1s worksheet Addition Worksheets - 1s worksheet](/math/drills/addition 1s/english/thumb.png)
![Addition Worksheets - 2s worksheet Addition Worksheets - 2s worksheet](/math/drills/addition 2s/english/thumb.png)
![Addition Worksheets - 2s worksheet Addition Worksheets - 2s worksheet](/math/drills/addition 2s/english/thumb.png)
![Addition Worksheets - 3s worksheet Addition Worksheets - 3s worksheet](/math/drills/addition 3s/english/thumb.png)
![Addition Worksheets - 3s worksheet Addition Worksheets - 3s worksheet](/math/drills/addition 3s/english/thumb.png)
![Addition Worksheets - 4s worksheet Addition Worksheets - 4s worksheet](/math/drills/addition 4s/english/thumb.png)
![Addition Worksheets - 4s worksheet Addition Worksheets - 4s worksheet](/math/drills/addition 4s/english/thumb.png)
![Addition Worksheets - 5s worksheet Addition Worksheets - 5s worksheet](/math/drills/addition 5s/english/thumb.png)
![Addition Worksheets - 5s worksheet Addition Worksheets - 5s worksheet](/math/drills/addition 5s/english/thumb.png)
![Addition Worksheets - 6s worksheet Addition Worksheets - 6s worksheet](/math/drills/addition 6s/english/thumb.png)
![Addition Worksheets - 6s worksheet Addition Worksheets - 6s worksheet](/math/drills/addition 6s/english/thumb.png)
![Addition Worksheets - 7s worksheet Addition Worksheets - 7s worksheet](/math/drills/addition 7s/english/thumb.png)
![Addition Worksheets - 7s worksheet Addition Worksheets - 7s worksheet](/math/drills/addition 7s/english/thumb.png)
![Addition Worksheets - 8s worksheet Addition Worksheets - 8s worksheet](/math/drills/addition 8s/english/thumb.png)
![Addition Worksheets - 8s worksheet Addition Worksheets - 8s worksheet](/math/drills/addition 8s/english/thumb.png)
![Addition Worksheets - 9s worksheet Addition Worksheets - 9s worksheet](/math/drills/addition 9s/english/thumb.png)
![Addition Worksheets - 9s worksheet Addition Worksheets - 9s worksheet](/math/drills/addition 9s/english/thumb.png)
![Addition Worksheets - 10s worksheet Addition Worksheets - 10s worksheet](/math/drills/addition 10s/english/thumb.png)
![Addition Worksheets - 10s worksheet Addition Worksheets - 10s worksheet](/math/drills/addition 10s/english/thumb.png)
![Addition Worksheets - Mixed worksheet Addition Worksheets - Mixed worksheet](/math/drills/addition mixed/english/thumb.png)
![Addition Worksheets - Mixed worksheet Addition Worksheets - Mixed worksheet](/math/drills/addition mixed/english/thumb.png)
![Addition Worksheets - 0s (horizontal) worksheet Addition Worksheets - 0s (horizontal) worksheet](/math/drills/addition 0s (h)/english/thumb.png)
![Addition Worksheets - 0s (horizontal) worksheet Addition Worksheets - 0s (horizontal) worksheet](/math/drills/addition 0s (h)/english/thumb.png)
![Addition Worksheets - 1s (horizontal) worksheet Addition Worksheets - 1s (horizontal) worksheet](/math/drills/addition 1s (h)/english/thumb.png)
![Addition Worksheets - 1s (horizontal) worksheet Addition Worksheets - 1s (horizontal) worksheet](/math/drills/addition 1s (h)/english/thumb.png)
![Addition Worksheets - 2s (horizontal) worksheet Addition Worksheets - 2s (horizontal) worksheet](/math/drills/addition 2s (h)/english/thumb.png)
![Addition Worksheets - 2s (horizontal) worksheet Addition Worksheets - 2s (horizontal) worksheet](/math/drills/addition 2s (h)/english/thumb.png)
![Addition Worksheets - 3s (horizontal) worksheet Addition Worksheets - 3s (horizontal) worksheet](/math/drills/addition 3s (h)/english/thumb.png)
![Addition Worksheets - 3s (horizontal) worksheet Addition Worksheets - 3s (horizontal) worksheet](/math/drills/addition 3s (h)/english/thumb.png)
![Addition Worksheets - 4s (horizontal) worksheet Addition Worksheets - 4s (horizontal) worksheet](/math/drills/addition 4s (h)/english/thumb.png)
![Addition Worksheets - 4s (horizontal) worksheet Addition Worksheets - 4s (horizontal) worksheet](/math/drills/addition 4s (h)/english/thumb.png)
![Addition Worksheets - 5s (horizontal) worksheet Addition Worksheets - 5s (horizontal) worksheet](/math/drills/addition 5s (h)/english/thumb.png)
![Addition Worksheets - 5s (horizontal) worksheet Addition Worksheets - 5s (horizontal) worksheet](/math/drills/addition 5s (h)/english/thumb.png)
![Addition Worksheets - 6s (horizontal) worksheet Addition Worksheets - 6s (horizontal) worksheet](/math/drills/addition 6s (h)/english/thumb.png)
![Addition Worksheets - 6s (horizontal) worksheet Addition Worksheets - 6s (horizontal) worksheet](/math/drills/addition 6s (h)/english/thumb.png)
![Addition Worksheets - 7s (horizontal) worksheet Addition Worksheets - 7s (horizontal) worksheet](/math/drills/addition 7s (h)/english/thumb.png)
![Addition Worksheets - 7s (horizontal) worksheet Addition Worksheets - 7s (horizontal) worksheet](/math/drills/addition 7s (h)/english/thumb.png)
![Addition Worksheets - 8s (horizontal) worksheet Addition Worksheets - 8s (horizontal) worksheet](/math/drills/addition 8s (h)/english/thumb.png)
![Addition Worksheets - 8s (horizontal) worksheet Addition Worksheets - 8s (horizontal) worksheet](/math/drills/addition 8s (h)/english/thumb.png)
![Addition Worksheets - 9s (horizontal) worksheet Addition Worksheets - 9s (horizontal) worksheet](/math/drills/addition 9s (h)/english/thumb.png)
![Addition Worksheets - 9s (horizontal) worksheet Addition Worksheets - 9s (horizontal) worksheet](/math/drills/addition 9s (h)/english/thumb.png)
![Addition Worksheets - 10s (horizontal) worksheet Addition Worksheets - 10s (horizontal) worksheet](/math/drills/addition 10s (h)/english/thumb.png)
![Addition Worksheets - 10s (horizontal) worksheet Addition Worksheets - 10s (horizontal) worksheet](/math/drills/addition 10s (h)/english/thumb.png)
![Addition Worksheets - Mixed (horizontal) worksheet Addition Worksheets - Mixed (horizontal) worksheet](/math/drills/addition mixed (h)/english/thumb.png)
![Addition Worksheets - Mixed (horizontal) worksheet Addition Worksheets - Mixed (horizontal) worksheet](/math/drills/addition mixed (h)/english/thumb.png)