Previous Standard
Compare two two-digit numbers based on meanings of the tens and ones digits, recording the results of comparisons with the symbols >, =, and <.
Next Standard
Given a two-digit number, mentally find 10 more or 10 less than the number, without having to count; explain the reasoning used.
Worksheets
![1.nbt.4 Worksheets - Adding Multiples of Ten worksheet 1.nbt.4 Worksheets - Adding Multiples of Ten worksheet](/math/addition/adding multiples of ten/english/thumb.png)
![1.nbt.4 Worksheets - Adding Multiples of Ten worksheet 1.nbt.4 Worksheets - Adding Multiples of Ten worksheet](/math/addition/adding multiples of ten/english/thumb.png)
![1.nbt.4 Worksheets - Adding Multiples of Ten (Horizontal) worksheet 1.nbt.4 Worksheets - Adding Multiples of Ten (Horizontal) worksheet](/math/addition/adding multiples of ten (horizontal)/english/thumb.png)
![1.nbt.4 Worksheets - Adding Multiples of Ten (Horizontal) worksheet 1.nbt.4 Worksheets - Adding Multiples of Ten (Horizontal) worksheet](/math/addition/adding multiples of ten (horizontal)/english/thumb.png)
![1.nbt.4 Worksheets - Adding Within 100 worksheet 1.nbt.4 Worksheets - Adding Within 100 worksheet](/math/addition/within 100/english/thumb.png)
![1.nbt.4 Worksheets - Adding Within 100 worksheet 1.nbt.4 Worksheets - Adding Within 100 worksheet](/math/addition/within 100/english/thumb.png)
![1.nbt.4 Worksheets - Adding Within 100 (horizontal) worksheet 1.nbt.4 Worksheets - Adding Within 100 (horizontal) worksheet](/math/addition/within 100 horizontal/english/thumb.png)
![1.nbt.4 Worksheets - Adding Within 100 (horizontal) worksheet 1.nbt.4 Worksheets - Adding Within 100 (horizontal) worksheet](/math/addition/within 100 horizontal/english/thumb.png)