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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 417 · 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. 1.273 × 5 =
  2. 2.165 × 3 =
  3. 3.968 × 4 =
  4. 4.851 × 4 =
  5. 5.923 × 6 =
  6. 6.428 × 5 =
  7. 7.432 × 6 =
  8. 8.231 × 7 =
  9. 9.694 × 7 =
  10. 10.481 × 7 =
  11. 11.362 × 4 =
  12. 12.565 × 9 =
  13. 13.792 × 3 =
  14. 14.601 × 7 =
  15. 15.263 × 6 =
  16. 16.301 × 5 =
  17. 17.394 × 7 =
  18. 18.511 × 9 =
  19. 19.957 × 4 =
  20. 20.437 × 6 =
  21. 21.285 × 9 =
  22. 22.432 × 4 =
  23. 23.184 × 5 =
  24. 24.194 × 3 =
  25. 25.341 × 9 =
  26. 26.141 × 3 =
  27. 27.757 × 7 =
  28. 28.174 × 9 =
  29. 29.419 × 4 =
  30. 30.261 × 3 =
  31. 31.792 × 6 =
  32. 32.433 × 8 =
  33. 33.954 × 3 =
  34. 34.612 × 4 =
  35. 35.693 × 5 =
  36. 36.269 × 4 =
  37. 37.713 × 6 =
  38. 38.204 × 5 =
  39. 39.558 × 5 =
  40. 40.911 × 6 =

Answer key

  1. 1365
  2. 495
  3. 3872
  4. 3404
  5. 5538
  6. 2140
  7. 2592
  8. 1617
  9. 4858
  10. 3367
  11. 1448
  12. 5085
  13. 2376
  14. 4207
  15. 1578
  16. 1505
  17. 2758
  18. 4599
  19. 3828
  20. 2622
  21. 2565
  22. 1728
  23. 920
  24. 582
  25. 3069
  26. 423
  27. 5299
  28. 1566
  29. 1676
  30. 783
  31. 4752
  32. 3464
  33. 2862
  34. 2448
  35. 3465
  36. 1076
  37. 4278
  38. 1020
  39. 2790
  40. 5466

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