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Math Grade K-1 Answer Key

Number Bonds to 10

Practice making pairs that add to 10

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Number Bonds to 10

Practice making pairs that add to 10

Math - Grade K-1

Instructions: Read each problem carefully. Fill in the missing number to make 10.
  1. 1

    Fill in the missing number: 1 + __ = 10

    Count up from 1 to 10.

    The missing number is 9 because 1 and 9 make 10.
  2. 2

    Fill in the missing number: 2 + __ = 10

    The missing number is 8 because 2 and 8 make 10.
  3. 3

    Fill in the missing number: 3 + __ = 10

    Think about how many more are needed to reach 10.

    The missing number is 7 because 3 and 7 make 10.
  4. 4

    Fill in the missing number: 4 + __ = 10

    The missing number is 6 because 4 and 6 make 10.
  5. 5

    Fill in the missing number: 5 + __ = 10

    Both parts are the same.

    The missing number is 5 because 5 and 5 make 10.
  6. 6

    Fill in the missing number: 6 + __ = 10

    The missing number is 4 because 6 and 4 make 10.
  7. 7

    Fill in the missing number: 7 + __ = 10

    Use your fingers to count how many more are needed.

    The missing number is 3 because 7 and 3 make 10.
  8. 8

    Fill in the missing number: 8 + __ = 10

    The missing number is 2 because 8 and 2 make 10.
  9. 9

    Fill in the missing number: 9 + __ = 10

    Only one more is needed to make 10.

    The missing number is 1 because 9 and 1 make 10.
  10. 10

    Fill in the missing number: 10 + __ = 10

    The missing number is 0 because 10 and 0 make 10.
  11. 11

    Write the two parts that make 10: __ and __. One part is 0.

    If one part is 0, the other part is the whole 10.

    The two parts are 0 and 10 because 0 and 10 make 10.
  12. 12

    Write the two parts that make 10: __ and __. One part is 2.

    The two parts are 2 and 8 because 2 and 8 make 10.
  13. 13

    Write the two parts that make 10: __ and __. One part is 4.

    Think about how many more than 4 are needed to make 10.

    The two parts are 4 and 6 because 4 and 6 make 10.
  14. 14

    Write the two parts that make 10: __ and __. One part is 7.

    The two parts are 7 and 3 because 7 and 3 make 10.
  15. 15

    Sam has 10 blocks. 6 are red. The rest are blue. How many blue blocks are there?

    Start at 6 and count up to 10.

    There are 4 blue blocks because 6 and 4 make 10.
LivePhysics.com Math - Grade K-1 - Answer Key