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Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 569 · 40 questions
TalentJR

How it works (Round and adjust): Round up: 49 is 50 − 1, 98 is 100 − 2. Multiply by the round number. Take away the number times the bit you added.

NameDateTime takenScore ___ / 40
  1. 1.14 × 29 =
  2. 2.12 × 98 =
  3. 3.12 × 19 =
  4. 4.3 × 29 =
  5. 5.6 × 9 =
  6. 6.3 × 29 =
  7. 7.6 × 98 =
  8. 8.29 × 98 =
  9. 9.8 × 98 =
  10. 10.12 × 49 =
  11. 11.19 × 99 =
  12. 12.11 × 29 =
  13. 13.14 × 49 =
  14. 14.9 × 49 =
  15. 15.5 × 19 =
  16. 16.21 × 98 =
  17. 17.10 × 29 =
  18. 18.9 × 19 =
  19. 19.4 × 29 =
  20. 20.4 × 19 =
  21. 21.15 × 49 =
  22. 22.3 × 98 =
  23. 23.16 × 99 =
  24. 24.29 × 99 =
  25. 25.22 × 98 =
  26. 26.13 × 19 =
  27. 27.7 × 9 =
  28. 28.3 × 29 =
  29. 29.10 × 29 =
  30. 30.20 × 98 =
  31. 31.4 × 9 =
  32. 32.20 × 99 =
  33. 33.21 × 99 =
  34. 34.9 × 9 =
  35. 35.5 × 19 =
  36. 36.7 × 49 =
  37. 37.24 × 99 =
  38. 38.6 × 19 =
  39. 39.5 × 9 =
  40. 40.5 × 9 =

Answer key

  1. 406
  2. 1176
  3. 228
  4. 87
  5. 54
  6. 87
  7. 588
  8. 2842
  9. 784
  10. 588
  11. 1881
  12. 319
  13. 686
  14. 441
  15. 95
  16. 2058
  17. 290
  18. 171
  19. 116
  20. 76
  21. 735
  22. 294
  23. 1584
  24. 2871
  25. 2156
  26. 247
  27. 63
  28. 87
  29. 290
  30. 1960
  31. 36
  32. 1980
  33. 2079
  34. 81
  35. 95
  36. 343
  37. 2376
  38. 114
  39. 45
  40. 45

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