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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 243 · 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. 1.335 × 8 =
  2. 2.679 × 4 =
  3. 3.851 × 7 =
  4. 4.276 × 5 =
  5. 5.351 × 7 =
  6. 6.291 × 8 =
  7. 7.542 × 6 =
  8. 8.457 × 5 =
  9. 9.771 × 7 =
  10. 10.921 × 5 =
  11. 11.699 × 6 =
  12. 12.545 × 9 =
  13. 13.882 × 6 =
  14. 14.625 × 6 =
  15. 15.356 × 3 =
  16. 16.276 × 4 =
  17. 17.252 × 7 =
  18. 18.797 × 9 =
  19. 19.118 × 4 =
  20. 20.606 × 5 =
  21. 21.846 × 7 =
  22. 22.798 × 8 =
  23. 23.205 × 5 =
  24. 24.338 × 8 =
  25. 25.491 × 5 =
  26. 26.291 × 9 =
  27. 27.274 × 3 =
  28. 28.971 × 7 =
  29. 29.731 × 5 =
  30. 30.379 × 4 =
  31. 31.353 × 6 =
  32. 32.301 × 8 =
  33. 33.245 × 4 =
  34. 34.506 × 8 =
  35. 35.978 × 9 =
  36. 36.341 × 7 =
  37. 37.299 × 3 =
  38. 38.841 × 5 =
  39. 39.771 × 6 =
  40. 40.527 × 4 =

Answer key

  1. 2680
  2. 2716
  3. 5957
  4. 1380
  5. 2457
  6. 2328
  7. 3252
  8. 2285
  9. 5397
  10. 4605
  11. 4194
  12. 4905
  13. 5292
  14. 3750
  15. 1068
  16. 1104
  17. 1764
  18. 7173
  19. 472
  20. 3030
  21. 5922
  22. 6384
  23. 1025
  24. 2704
  25. 2455
  26. 2619
  27. 822
  28. 6797
  29. 3655
  30. 1516
  31. 2118
  32. 2408
  33. 980
  34. 4048
  35. 8802
  36. 2387
  37. 897
  38. 4205
  39. 4626
  40. 2108

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