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Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 134 · 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. 1.12 × 98 =
  2. 2.36 × 98 =
  3. 3.14 × 29 =
  4. 4.22 × 98 =
  5. 5.29 × 99 =
  6. 6.7 × 99 =
  7. 7.25 × 98 =
  8. 8.3 × 9 =
  9. 9.17 × 98 =
  10. 10.7 × 98 =
  11. 11.11 × 49 =
  12. 12.13 × 9 =
  13. 13.9 × 98 =
  14. 14.9 × 49 =
  15. 15.36 × 99 =
  16. 16.10 × 49 =
  17. 17.7 × 19 =
  18. 18.8 × 9 =
  19. 19.5 × 29 =
  20. 20.4 × 19 =
  21. 21.38 × 98 =
  22. 22.3 × 9 =
  23. 23.13 × 29 =
  24. 24.12 × 9 =
  25. 25.3 × 19 =
  26. 26.14 × 19 =
  27. 27.11 × 49 =
  28. 28.14 × 19 =
  29. 29.6 × 29 =
  30. 30.15 × 99 =
  31. 31.7 × 29 =
  32. 32.4 × 9 =
  33. 33.3 × 98 =
  34. 34.8 × 98 =
  35. 35.24 × 99 =
  36. 36.7 × 49 =
  37. 37.14 × 49 =
  38. 38.8 × 49 =
  39. 39.35 × 99 =
  40. 40.29 × 98 =

Answer key

  1. 1176
  2. 3528
  3. 406
  4. 2156
  5. 2871
  6. 693
  7. 2450
  8. 27
  9. 1666
  10. 686
  11. 539
  12. 117
  13. 882
  14. 441
  15. 3564
  16. 490
  17. 133
  18. 72
  19. 145
  20. 76
  21. 3724
  22. 27
  23. 377
  24. 108
  25. 57
  26. 266
  27. 539
  28. 266
  29. 174
  30. 1485
  31. 203
  32. 36
  33. 294
  34. 784
  35. 2376
  36. 343
  37. 686
  38. 392
  39. 3465
  40. 2842

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