← Round and adjust lesson New set →

Round and Adjust Multiplication Worksheet

Tables & multiplication lesson 16: Round and adjust · Set 506 · 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. 1.9 × 19 =
  2. 2.7 × 49 =
  3. 3.6 × 49 =
  4. 4.4 × 98 =
  5. 5.14 × 98 =
  6. 6.12 × 29 =
  7. 7.4 × 9 =
  8. 8.8 × 9 =
  9. 9.13 × 98 =
  10. 10.25 × 98 =
  11. 11.14 × 9 =
  12. 12.34 × 98 =
  13. 13.11 × 9 =
  14. 14.8 × 19 =
  15. 15.35 × 99 =
  16. 16.3 × 19 =
  17. 17.5 × 49 =
  18. 18.11 × 9 =
  19. 19.15 × 9 =
  20. 20.4 × 99 =
  21. 21.23 × 98 =
  22. 22.36 × 99 =
  23. 23.14 × 29 =
  24. 24.10 × 9 =
  25. 25.15 × 9 =
  26. 26.11 × 19 =
  27. 27.8 × 9 =
  28. 28.12 × 29 =
  29. 29.4 × 19 =
  30. 30.14 × 9 =
  31. 31.4 × 49 =
  32. 32.16 × 99 =
  33. 33.15 × 9 =
  34. 34.13 × 9 =
  35. 35.8 × 19 =
  36. 36.14 × 19 =
  37. 37.38 × 98 =
  38. 38.15 × 49 =
  39. 39.4 × 9 =
  40. 40.10 × 99 =

Answer key

  1. 171
  2. 343
  3. 294
  4. 392
  5. 1372
  6. 348
  7. 36
  8. 72
  9. 1274
  10. 2450
  11. 126
  12. 3332
  13. 99
  14. 152
  15. 3465
  16. 57
  17. 245
  18. 99
  19. 135
  20. 396
  21. 2254
  22. 3564
  23. 406
  24. 90
  25. 135
  26. 209
  27. 72
  28. 348
  29. 76
  30. 126
  31. 196
  32. 1584
  33. 135
  34. 117
  35. 152
  36. 266
  37. 3724
  38. 735
  39. 36
  40. 990

Free tables & multiplication lessons, practice and worksheets at talentjr.in/multiplication-tables