1.NBT.C.4 Grade 1 · Number & Operations in Base Ten
Add Within 100
What your child learns
Adding within 100 - a two-digit number and a one-digit number, or a two-digit number and a multiple of 10 - with models, drawings and place value, sometimes making a new ten.
Try it at home
Add 26 + 7 with bundled sticks. When the loose ones reach ten, bundle them into a new ten.
Words to use
- add within 100
- make a ten
- place value
