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Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 276 · 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. 1.11 × 19 =
  2. 2.14 × 9 =
  3. 3.15 × 19 =
  4. 4.5 × 9 =
  5. 5.9 × 9 =
  6. 6.23 × 99 =
  7. 7.4 × 9 =
  8. 8.15 × 49 =
  9. 9.11 × 29 =
  10. 10.4 × 29 =
  11. 11.4 × 99 =
  12. 12.18 × 99 =
  13. 13.4 × 29 =
  14. 14.8 × 49 =
  15. 15.13 × 19 =
  16. 16.10 × 19 =
  17. 17.15 × 49 =
  18. 18.8 × 29 =
  19. 19.4 × 99 =
  20. 20.13 × 9 =
  21. 21.8 × 49 =
  22. 22.4 × 19 =
  23. 23.35 × 99 =
  24. 24.14 × 49 =
  25. 25.10 × 49 =
  26. 26.9 × 49 =
  27. 27.8 × 19 =
  28. 28.37 × 99 =
  29. 29.11 × 19 =
  30. 30.7 × 29 =
  31. 31.23 × 99 =
  32. 32.13 × 9 =
  33. 33.5 × 99 =
  34. 34.4 × 49 =
  35. 35.13 × 29 =
  36. 36.11 × 19 =
  37. 37.7 × 49 =
  38. 38.8 × 49 =
  39. 39.9 × 49 =
  40. 40.7 × 99 =

Answer key

  1. 209
  2. 126
  3. 285
  4. 45
  5. 81
  6. 2277
  7. 36
  8. 735
  9. 319
  10. 116
  11. 396
  12. 1782
  13. 116
  14. 392
  15. 247
  16. 190
  17. 735
  18. 232
  19. 396
  20. 117
  21. 392
  22. 76
  23. 3465
  24. 686
  25. 490
  26. 441
  27. 152
  28. 3663
  29. 209
  30. 203
  31. 2277
  32. 117
  33. 495
  34. 196
  35. 377
  36. 209
  37. 343
  38. 392
  39. 441
  40. 693

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