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Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 565 · 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. 1.35 × 98 =
  2. 2.15 × 29 =
  3. 3.13 × 19 =
  4. 4.31 × 99 =
  5. 5.8 × 19 =
  6. 6.5 × 19 =
  7. 7.12 × 19 =
  8. 8.5 × 49 =
  9. 9.9 × 9 =
  10. 10.5 × 9 =
  11. 11.8 × 9 =
  12. 12.3 × 49 =
  13. 13.14 × 49 =
  14. 14.12 × 98 =
  15. 15.6 × 98 =
  16. 16.7 × 49 =
  17. 17.34 × 98 =
  18. 18.15 × 98 =
  19. 19.5 × 29 =
  20. 20.6 × 49 =
  21. 21.9 × 99 =
  22. 22.11 × 98 =
  23. 23.6 × 19 =
  24. 24.9 × 29 =
  25. 25.9 × 9 =
  26. 26.13 × 19 =
  27. 27.6 × 9 =
  28. 28.13 × 98 =
  29. 29.13 × 19 =
  30. 30.3 × 29 =
  31. 31.38 × 99 =
  32. 32.13 × 29 =
  33. 33.6 × 99 =
  34. 34.8 × 29 =
  35. 35.11 × 98 =
  36. 36.13 × 29 =
  37. 37.15 × 19 =
  38. 38.6 × 19 =
  39. 39.5 × 19 =
  40. 40.14 × 98 =

Answer key

  1. 3430
  2. 435
  3. 247
  4. 3069
  5. 152
  6. 95
  7. 228
  8. 245
  9. 81
  10. 45
  11. 72
  12. 147
  13. 686
  14. 1176
  15. 588
  16. 343
  17. 3332
  18. 1470
  19. 145
  20. 294
  21. 891
  22. 1078
  23. 114
  24. 261
  25. 81
  26. 247
  27. 54
  28. 1274
  29. 247
  30. 87
  31. 3762
  32. 377
  33. 594
  34. 232
  35. 1078
  36. 377
  37. 285
  38. 114
  39. 95
  40. 1372

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