Mixed Add & Subtract Within 100
2.NBT.5 — Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction
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What is on the three Mixed Add & Subtract Within 100 worksheets
- Support
- draws base-ten blocks 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
- 31 + 19 = ___
- 51 - 14 = ___
- 67 - 26 = ___
Every sheet is generated, so the numbers are different each time you make one.
Before this: 1.NBT.4 — add within 100: two-digit plus one-digit, and two-digit plus a multiple of 10.