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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 252 · 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 × 9 =
  2. 2.243 × 6 =
  3. 3.631 × 8 =
  4. 4.531 × 8 =
  5. 5.982 × 8 =
  6. 6.831 × 5 =
  7. 7.598 × 7 =
  8. 8.778 × 8 =
  9. 9.227 × 6 =
  10. 10.645 × 9 =
  11. 11.899 × 8 =
  12. 12.121 × 6 =
  13. 13.124 × 8 =
  14. 14.401 × 4 =
  15. 15.661 × 3 =
  16. 16.414 × 3 =
  17. 17.456 × 7 =
  18. 18.524 × 9 =
  19. 19.575 × 7 =
  20. 20.777 × 5 =
  21. 21.144 × 4 =
  22. 22.314 × 7 =
  23. 23.605 × 7 =
  24. 24.931 × 5 =
  25. 25.523 × 8 =
  26. 26.294 × 6 =
  27. 27.452 × 7 =
  28. 28.481 × 7 =
  29. 29.332 × 7 =
  30. 30.572 × 3 =
  31. 31.253 × 5 =
  32. 32.181 × 6 =
  33. 33.617 × 5 =
  34. 34.854 × 5 =
  35. 35.395 × 3 =
  36. 36.663 × 5 =
  37. 37.646 × 3 =
  38. 38.929 × 9 =
  39. 39.458 × 3 =
  40. 40.788 × 8 =

Answer key

  1. 4059
  2. 1458
  3. 5048
  4. 4248
  5. 7856
  6. 4155
  7. 4186
  8. 6224
  9. 1362
  10. 5805
  11. 7192
  12. 726
  13. 992
  14. 1604
  15. 1983
  16. 1242
  17. 3192
  18. 4716
  19. 4025
  20. 3885
  21. 576
  22. 2198
  23. 4235
  24. 4655
  25. 4184
  26. 1764
  27. 3164
  28. 3367
  29. 2324
  30. 1716
  31. 1265
  32. 1086
  33. 3085
  34. 4270
  35. 1185
  36. 3315
  37. 1938
  38. 8361
  39. 1374
  40. 6304

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