Mixed Addition Within 100
1.NBT.4 — Add within 100: two-digit plus one-digit, and two-digit plus a multiple of 10
Build this worksheet below — all three levels and the answer key, ready to print.
Loading…
Or take one of our 7 ready-made worksheets — already built, nothing to set up.
What is on the three Mixed Addition Within 100 worksheets
- Support
- draws base-ten blocks beside every problem.
- On level
- The grade's own level, with no drawings.
- Challenge
- uses the harder cases.
Example problems from the on-level sheet
- 52 + 9 = ___
- 98 + 1 = ___
- 55 + 40 = ___
Every sheet is generated, so the numbers are different each time you make one.
Before this: 1.NBT.2 — understand two-digit numbers as tens and ones, including 10 as a bundle of ten ones and multiples of ten.