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Fast Addition Worksheet – Make 10

Speed calculation lesson 1: Add a column fast: pairs that make 10 · Set 491 · 40 questions
TalentJR

The fast method (Make tens): Scan the numbers for pairs that make 10. Count the tens: two pairs make 20, three pairs make 30. Add the numbers that are left.

NameDateTime takenScore ___ / 40
  1. 1.7 + 1 + 7 + 3 =
  2. 2.6 + 6 + 4 + 5 =
  3. 3.5 + 9 + 8 + 1 + 2 =
  4. 4.9 + 3 + 7 + 7 + 5 =
  5. 5.3 + 5 + 9 + 6 + 1 =
  6. 6.1 + 8 + 2 + 2 =
  7. 7.8 + 4 + 6 + 4 =
  8. 8.5 + 6 + 7 + 3 =
  9. 9.5 + 1 + 1 + 9 =
  10. 10.5 + 6 + 4 + 4 =
  11. 11.7 + 8 + 8 + 2 =
  12. 12.3 + 1 + 9 + 9 =
  13. 13.3 + 1 + 8 + 7 =
  14. 14.1 + 2 + 8 + 9 =
  15. 15.1 + 8 + 9 + 9 + 8 =
  16. 16.9 + 6 + 1 + 4 + 6 =
  17. 17.3 + 1 + 8 + 2 =
  18. 18.8 + 9 + 4 + 3 + 2 =
  19. 19.8 + 7 + 8 + 3 + 7 =
  20. 20.3 + 4 + 1 + 9 =
  21. 21.1 + 3 + 9 + 2 + 4 =
  22. 22.8 + 2 + 3 + 8 =
  23. 23.8 + 7 + 2 + 3 =
  24. 24.7 + 7 + 3 + 7 =
  25. 25.6 + 2 + 2 + 4 + 8 =
  26. 26.4 + 4 + 6 + 3 =
  27. 27.9 + 3 + 8 + 7 + 1 =
  28. 28.5 + 5 + 5 + 1 =
  29. 29.5 + 3 + 4 + 5 =
  30. 30.9 + 2 + 3 + 1 + 1 =
  31. 31.5 + 2 + 7 + 5 =
  32. 32.7 + 9 + 3 + 3 =
  33. 33.2 + 2 + 4 + 8 =
  34. 34.5 + 2 + 2 + 5 + 8 =
  35. 35.5 + 1 + 9 + 5 =
  36. 36.9 + 9 + 1 + 3 =
  37. 37.6 + 2 + 8 + 1 + 1 =
  38. 38.2 + 4 + 7 + 4 + 8 =
  39. 39.3 + 9 + 9 + 7 + 7 =
  40. 40.2 + 3 + 2 + 8 + 2 =

Answer key

  1. 18
  2. 21
  3. 25
  4. 31
  5. 24
  6. 13
  7. 22
  8. 21
  9. 16
  10. 19
  11. 25
  12. 22
  13. 19
  14. 20
  15. 35
  16. 26
  17. 14
  18. 26
  19. 33
  20. 17
  21. 19
  22. 21
  23. 20
  24. 24
  25. 22
  26. 17
  27. 28
  28. 16
  29. 17
  30. 16
  31. 19
  32. 22
  33. 16
  34. 22
  35. 20
  36. 22
  37. 18
  38. 25
  39. 35
  40. 17

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