Addition•Grade 1
1.NBT.5 — 10 More or 10 Less Practice
Practice finding 10 more or 10 less than any two-digit number using mental math, building understanding of place value and how tens change in our number system.
20 problemsAnswer key included
Find 10 more or 10 less than each number mentally and write the answer.
- 1.10 more than 23 =
- 2.10 less than 45 =
- 3.10 more than 57 =
- 4.10 less than 62 =
- 5.10 more than 31 =
- 6.10 less than 78 =
- 7.10 more than 14 =
- 8.10 less than 90 =
- 9.10 more than 46 =
- 10.10 less than 53 =
- 11.10 more than 72 =
- 12.10 less than 37 =
- 13.10 more than 85 =
- 14.10 less than 64 =
- 15.10 more than 19 =
- 16.10 less than 81 =
- 17.10 more than 68 =
- 18.10 less than 29 =
- 19.10 more than 53 =
- 20.10 less than 47 =
This free printable grade 1 addition worksheet includes 20 problems and a complete answer key. Download the PDF above to print at home or in the classroom.
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