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Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 957 · 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. 1.6 × 19 =
  2. 2.30 × 98 =
  3. 3.3 × 49 =
  4. 4.5 × 19 =
  5. 5.37 × 98 =
  6. 6.4 × 49 =
  7. 7.6 × 29 =
  8. 8.5 × 9 =
  9. 9.11 × 49 =
  10. 10.4 × 49 =
  11. 11.10 × 19 =
  12. 12.8 × 19 =
  13. 13.12 × 9 =
  14. 14.4 × 9 =
  15. 15.24 × 99 =
  16. 16.6 × 99 =
  17. 17.3 × 9 =
  18. 18.6 × 9 =
  19. 19.5 × 19 =
  20. 20.19 × 99 =
  21. 21.3 × 29 =
  22. 22.3 × 49 =
  23. 23.4 × 9 =
  24. 24.3 × 19 =
  25. 25.4 × 29 =
  26. 26.9 × 19 =
  27. 27.11 × 98 =
  28. 28.13 × 49 =
  29. 29.10 × 19 =
  30. 30.5 × 19 =
  31. 31.14 × 19 =
  32. 32.35 × 98 =
  33. 33.15 × 19 =
  34. 34.4 × 9 =
  35. 35.32 × 99 =
  36. 36.4 × 49 =
  37. 37.8 × 9 =
  38. 38.11 × 29 =
  39. 39.3 × 19 =
  40. 40.15 × 99 =

Answer key

  1. 114
  2. 2940
  3. 147
  4. 95
  5. 3626
  6. 196
  7. 174
  8. 45
  9. 539
  10. 196
  11. 190
  12. 152
  13. 108
  14. 36
  15. 2376
  16. 594
  17. 27
  18. 54
  19. 95
  20. 1881
  21. 87
  22. 147
  23. 36
  24. 57
  25. 116
  26. 171
  27. 1078
  28. 637
  29. 190
  30. 95
  31. 266
  32. 3430
  33. 285
  34. 36
  35. 3168
  36. 196
  37. 72
  38. 319
  39. 57
  40. 1485

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