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Level 4 · Printable worksheet

Level 4: little friends

Every sum needs a little friend. There are exactly twenty on one rod, and they are all here.

How to do these: Little friends: the 5 complements

Name ____________________   Date ____________   Time taken ________

  1. 2 + 3 =
  2. 8 − 4 =
  3. 6 − 4 =
  4. 3 + 4 =
  5. 5 − 2 =
  6. 6 − 2 =
  7. 4 + 3 =
  8. 5 − 1 =
  9. 4 + 4 =
  10. 1 + 4 =
  11. 6 − 3 =
  12. 5 − 3 =
  13. 4 + 2 =
  14. 7 − 3 =
  15. 3 + 3 =
  16. 3 + 2 =
  17. 7 − 4 =
  18. 2 + 4 =
  19. 4 + 1 =
  20. 5 − 4 =
Show the answers
  1. 5
  2. 4
  3. 2
  4. 7
  5. 3
  6. 4
  7. 7
  8. 4
  9. 8
  10. 5
  11. 3
  12. 2
  13. 6
  14. 4
  15. 6
  16. 5
  17. 3
  18. 6
  19. 5
  20. 1

How to use this sheet

  • Work each sum on a soroban or the online abacus, clearing the board between sums.
  • Time the whole sheet, then try to beat it tomorrow. Accuracy first; speed follows.
  • Got one wrong? Do it again slowly and say each move out loud.

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