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Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 694 · 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. 1.10 × 19 =
  2. 2.11 × 49 =
  3. 3.3 × 9 =
  4. 4.22 × 98 =
  5. 5.9 × 19 =
  6. 6.8 × 19 =
  7. 7.29 × 99 =
  8. 8.12 × 49 =
  9. 9.6 × 9 =
  10. 10.34 × 98 =
  11. 11.15 × 9 =
  12. 12.33 × 98 =
  13. 13.36 × 99 =
  14. 14.10 × 29 =
  15. 15.13 × 19 =
  16. 16.8 × 9 =
  17. 17.5 × 29 =
  18. 18.36 × 99 =
  19. 19.7 × 19 =
  20. 20.36 × 99 =
  21. 21.6 × 49 =
  22. 22.8 × 19 =
  23. 23.21 × 99 =
  24. 24.15 × 19 =
  25. 25.39 × 98 =
  26. 26.34 × 99 =
  27. 27.4 × 49 =
  28. 28.9 × 98 =
  29. 29.7 × 9 =
  30. 30.9 × 49 =
  31. 31.6 × 9 =
  32. 32.13 × 19 =
  33. 33.9 × 29 =
  34. 34.11 × 19 =
  35. 35.33 × 99 =
  36. 36.4 × 49 =
  37. 37.10 × 19 =
  38. 38.17 × 98 =
  39. 39.5 × 49 =
  40. 40.8 × 19 =

Answer key

  1. 190
  2. 539
  3. 27
  4. 2156
  5. 171
  6. 152
  7. 2871
  8. 588
  9. 54
  10. 3332
  11. 135
  12. 3234
  13. 3564
  14. 290
  15. 247
  16. 72
  17. 145
  18. 3564
  19. 133
  20. 3564
  21. 294
  22. 152
  23. 2079
  24. 285
  25. 3822
  26. 3366
  27. 196
  28. 882
  29. 63
  30. 441
  31. 54
  32. 247
  33. 261
  34. 209
  35. 3267
  36. 196
  37. 190
  38. 1666
  39. 245
  40. 152

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