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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 935 · 40 questions
TalentJR

How to do it in your head (Biggest part first): Split the 3-digit number into hundreds, tens and ones. Multiply the hundreds and keep that number in your head. Multiply the tens and add, then multiply the ones and add.

NameDateTime takenScore ___ / 40
  1. 1.451 × 7 =
  2. 2.774 × 6 =
  3. 3.978 × 3 =
  4. 4.508 × 8 =
  5. 5.422 × 9 =
  6. 6.292 × 8 =
  7. 7.477 × 7 =
  8. 8.454 × 4 =
  9. 9.794 × 8 =
  10. 10.356 × 6 =
  11. 11.279 × 6 =
  12. 12.431 × 6 =
  13. 13.617 × 5 =
  14. 14.553 × 5 =
  15. 15.798 × 8 =
  16. 16.122 × 5 =
  17. 17.151 × 5 =
  18. 18.397 × 6 =
  19. 19.894 × 9 =
  20. 20.136 × 8 =
  21. 21.371 × 6 =
  22. 22.811 × 9 =
  23. 23.501 × 4 =
  24. 24.181 × 8 =
  25. 25.725 × 8 =
  26. 26.675 × 3 =
  27. 27.748 × 8 =
  28. 28.467 × 7 =
  29. 29.486 × 7 =
  30. 30.841 × 8 =
  31. 31.137 × 6 =
  32. 32.926 × 4 =
  33. 33.142 × 4 =
  34. 34.328 × 3 =
  35. 35.474 × 7 =
  36. 36.627 × 9 =
  37. 37.428 × 4 =
  38. 38.585 × 8 =
  39. 39.477 × 9 =
  40. 40.154 × 4 =

Answer key

  1. 3157
  2. 4644
  3. 2934
  4. 4064
  5. 3798
  6. 2336
  7. 3339
  8. 1816
  9. 6352
  10. 2136
  11. 1674
  12. 2586
  13. 3085
  14. 2765
  15. 6384
  16. 610
  17. 755
  18. 2382
  19. 8046
  20. 1088
  21. 2226
  22. 7299
  23. 2004
  24. 1448
  25. 5800
  26. 2025
  27. 5984
  28. 3269
  29. 3402
  30. 6728
  31. 822
  32. 3704
  33. 568
  34. 984
  35. 3318
  36. 5643
  37. 1712
  38. 4680
  39. 4293
  40. 616

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