Previous Standard
Add within 100, including adding a two-digit number and a one-digit number, and adding a two-digit number and a multiple of 10, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used. Understand that in adding two-digit numbers, one adds tens and tens, ones and ones; and sometimes it is necessary to compose a ten.
Next Standard
Subtract multiples of 10 in the range 10-90 from multiples of 10 in the range 10-90 (positive or zero differences], using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used.
Worksheets
![1.nbt.5 Worksheets - Finding Ten More and Ten Less worksheet 1.nbt.5 Worksheets - Finding Ten More and Ten Less worksheet](/math/drills/ten more or ten less/english/thumb.png)
![1.nbt.5 Worksheets - Finding Ten More and Ten Less worksheet 1.nbt.5 Worksheets - Finding Ten More and Ten Less worksheet](/math/drills/ten more or ten less/english/thumb.png)