Previous Standard
Add up to four two-digit numbers using strategies based on place value and properties of operations.
Next Standard
Mentally add 10 or 100 to a given number 100-900, and mentally subtract 10 or 100 from a given number 100-900.
Worksheets
![2.nbt.7 Worksheets - Solving Mixed Problems within 1000 (+ -) worksheet 2.nbt.7 Worksheets - Solving Mixed Problems within 1000 (+ -) worksheet](/math/addition/solving mixed problems (within 1000)/english/thumb.png)
![2.nbt.7 Worksheets - Solving Mixed Problems within 1000 (+ -) worksheet 2.nbt.7 Worksheets - Solving Mixed Problems within 1000 (+ -) worksheet](/math/addition/solving mixed problems (within 1000)/english/thumb.png)
![2.nbt.7 Worksheets - Adding Within 1,000 worksheet 2.nbt.7 Worksheets - Adding Within 1,000 worksheet](/math/addition/within 1000/english/thumb.png)
![2.nbt.7 Worksheets - Adding Within 1,000 worksheet 2.nbt.7 Worksheets - Adding Within 1,000 worksheet](/math/addition/within 1000/english/thumb.png)
![2.nbt.7 Worksheets - 3 Digit Minus 3 Digit worksheet 2.nbt.7 Worksheets - 3 Digit Minus 3 Digit worksheet](/math/subtraction/3 digit minus 3 digit/english/thumb.png)
![2.nbt.7 Worksheets - 3 Digit Minus 3 Digit worksheet 2.nbt.7 Worksheets - 3 Digit Minus 3 Digit worksheet](/math/subtraction/3 digit minus 3 digit/english/thumb.png)