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Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 289 · 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. 1.13 × 98 =
  2. 2.6 × 9 =
  3. 3.10 × 29 =
  4. 4.6 × 29 =
  5. 5.12 × 19 =
  6. 6.7 × 19 =
  7. 7.29 × 98 =
  8. 8.11 × 29 =
  9. 9.4 × 99 =
  10. 10.12 × 29 =
  11. 11.5 × 49 =
  12. 12.13 × 29 =
  13. 13.7 × 9 =
  14. 14.15 × 29 =
  15. 15.10 × 19 =
  16. 16.4 × 49 =
  17. 17.6 × 19 =
  18. 18.13 × 19 =
  19. 19.6 × 19 =
  20. 20.13 × 19 =
  21. 21.9 × 49 =
  22. 22.14 × 9 =
  23. 23.12 × 9 =
  24. 24.5 × 98 =
  25. 25.12 × 49 =
  26. 26.3 × 49 =
  27. 27.19 × 99 =
  28. 28.5 × 49 =
  29. 29.27 × 98 =
  30. 30.5 × 29 =
  31. 31.3 × 9 =
  32. 32.9 × 9 =
  33. 33.4 × 9 =
  34. 34.30 × 98 =
  35. 35.4 × 49 =
  36. 36.7 × 29 =
  37. 37.4 × 49 =
  38. 38.4 × 49 =
  39. 39.30 × 98 =
  40. 40.11 × 29 =

Answer key

  1. 1274
  2. 54
  3. 290
  4. 174
  5. 228
  6. 133
  7. 2842
  8. 319
  9. 396
  10. 348
  11. 245
  12. 377
  13. 63
  14. 435
  15. 190
  16. 196
  17. 114
  18. 247
  19. 114
  20. 247
  21. 441
  22. 126
  23. 108
  24. 490
  25. 588
  26. 147
  27. 1881
  28. 245
  29. 2646
  30. 145
  31. 27
  32. 81
  33. 36
  34. 2940
  35. 196
  36. 203
  37. 196
  38. 196
  39. 2940
  40. 319

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