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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 539 · 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. 1.901 × 4 =
  2. 2.988 × 7 =
  3. 3.195 × 7 =
  4. 4.266 × 7 =
  5. 5.519 × 7 =
  6. 6.164 × 3 =
  7. 7.557 × 7 =
  8. 8.376 × 7 =
  9. 9.381 × 4 =
  10. 10.957 × 4 =
  11. 11.151 × 9 =
  12. 12.451 × 9 =
  13. 13.285 × 8 =
  14. 14.332 × 8 =
  15. 15.914 × 4 =
  16. 16.757 × 5 =
  17. 17.823 × 4 =
  18. 18.287 × 5 =
  19. 19.778 × 6 =
  20. 20.329 × 8 =
  21. 21.868 × 9 =
  22. 22.932 × 8 =
  23. 23.201 × 6 =
  24. 24.121 × 7 =
  25. 25.827 × 3 =
  26. 26.573 × 5 =
  27. 27.539 × 3 =
  28. 28.603 × 4 =
  29. 29.708 × 7 =
  30. 30.756 × 8 =
  31. 31.209 × 4 =
  32. 32.676 × 4 =
  33. 33.843 × 8 =
  34. 34.882 × 7 =
  35. 35.325 × 8 =
  36. 36.201 × 4 =
  37. 37.611 × 5 =
  38. 38.371 × 9 =
  39. 39.189 × 5 =
  40. 40.623 × 8 =

Answer key

  1. 3604
  2. 6916
  3. 1365
  4. 1862
  5. 3633
  6. 492
  7. 3899
  8. 2632
  9. 1524
  10. 3828
  11. 1359
  12. 4059
  13. 2280
  14. 2656
  15. 3656
  16. 3785
  17. 3292
  18. 1435
  19. 4668
  20. 2632
  21. 7812
  22. 7456
  23. 1206
  24. 847
  25. 2481
  26. 2865
  27. 1617
  28. 2412
  29. 4956
  30. 6048
  31. 836
  32. 2704
  33. 6744
  34. 6174
  35. 2600
  36. 804
  37. 3055
  38. 3339
  39. 945
  40. 4984

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