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Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 293 · 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 × 19 =
  2. 2.8 × 98 =
  3. 3.33 × 99 =
  4. 4.9 × 9 =
  5. 5.13 × 98 =
  6. 6.13 × 19 =
  7. 7.8 × 99 =
  8. 8.31 × 98 =
  9. 9.13 × 19 =
  10. 10.7 × 9 =
  11. 11.4 × 19 =
  12. 12.8 × 49 =
  13. 13.8 × 9 =
  14. 14.13 × 29 =
  15. 15.5 × 19 =
  16. 16.14 × 98 =
  17. 17.7 × 98 =
  18. 18.5 × 9 =
  19. 19.15 × 49 =
  20. 20.4 × 29 =
  21. 21.11 × 98 =
  22. 22.10 × 98 =
  23. 23.14 × 19 =
  24. 24.9 × 19 =
  25. 25.38 × 98 =
  26. 26.13 × 9 =
  27. 27.12 × 19 =
  28. 28.5 × 19 =
  29. 29.8 × 9 =
  30. 30.40 × 99 =
  31. 31.17 × 98 =
  32. 32.6 × 49 =
  33. 33.14 × 9 =
  34. 34.10 × 19 =
  35. 35.34 × 98 =
  36. 36.15 × 98 =
  37. 37.9 × 9 =
  38. 38.37 × 98 =
  39. 39.9 × 49 =
  40. 40.8 × 49 =

Answer key

  1. 228
  2. 784
  3. 3267
  4. 81
  5. 1274
  6. 247
  7. 792
  8. 3038
  9. 247
  10. 63
  11. 76
  12. 392
  13. 72
  14. 377
  15. 95
  16. 1372
  17. 686
  18. 45
  19. 735
  20. 116
  21. 1078
  22. 980
  23. 266
  24. 171
  25. 3724
  26. 117
  27. 228
  28. 95
  29. 72
  30. 3960
  31. 1666
  32. 294
  33. 126
  34. 190
  35. 3332
  36. 1470
  37. 81
  38. 3626
  39. 441
  40. 392

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