Worksheet

Two-Digit Addition

Grade 1 - Math - Building Confidence

NameDate

  1. 45 + 1 = ____

  2. Which sum is correct for 19 + 30?

    • 49
    • 40
    • 59

  3. Break apart 20 + 6. Which tens-and-ones idea helps?

    • add 6 to 20
    • add 20 to itself
    • subtract 6 from 20

  4. A class had 23 counters and found 20 more. How many counters now?

  5. Which number sentence has a total of 38?

    • 34 + 4
    • 38 + 4
    • 34 - 4

  6. 43 + 10 = ____

  7. Which sum is correct for 33 + 6?

    • 31
    • 39
    • 30

  8. Break apart 49 + 30. Which tens-and-ones idea helps?

    • add 49 to itself
    • subtract 30 from 49
    • add 30 to 49

  9. A class had 26 counters and found 3 more. How many counters now?

  10. Which number sentence has a total of 81?

    • 40 + 40
    • 41 + 40
    • 41 - 40
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