10 More
1.NBT.5 — Mentally find 10 more or 10 less than a two-digit number without counting
Build this worksheet below — all three levels and the answer key, ready to print.
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Or take one of our 7 ready-made worksheets — already built, nothing to set up.
What is on the three 10 More worksheets
- Support
- draws a number line beside every problem.
- On level
- The grade's own level, with no drawings.
- Challenge
- moves the missing number out of the answer slot, and uses the harder cases.
Example problems from the on-level sheet
- 34 + 10 = ___
- 64 + 10 = ___
- 30 + 10 = ___
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.