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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 452 · 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. 1.681 × 4 =
  2. 2.767 × 6 =
  3. 3.743 × 9 =
  4. 4.813 × 7 =
  5. 5.345 × 4 =
  6. 6.676 × 5 =
  7. 7.324 × 7 =
  8. 8.303 × 6 =
  9. 9.861 × 8 =
  10. 10.291 × 3 =
  11. 11.552 × 8 =
  12. 12.822 × 9 =
  13. 13.185 × 4 =
  14. 14.938 × 9 =
  15. 15.742 × 7 =
  16. 16.875 × 3 =
  17. 17.286 × 3 =
  18. 18.805 × 7 =
  19. 19.385 × 6 =
  20. 20.661 × 9 =
  21. 21.144 × 6 =
  22. 22.428 × 7 =
  23. 23.973 × 7 =
  24. 24.823 × 3 =
  25. 25.714 × 9 =
  26. 26.468 × 9 =
  27. 27.845 × 4 =
  28. 28.128 × 6 =
  29. 29.745 × 6 =
  30. 30.517 × 7 =
  31. 31.125 × 7 =
  32. 32.415 × 8 =
  33. 33.857 × 9 =
  34. 34.351 × 4 =
  35. 35.684 × 8 =
  36. 36.246 × 8 =
  37. 37.317 × 3 =
  38. 38.155 × 5 =
  39. 39.421 × 9 =
  40. 40.919 × 4 =

Answer key

  1. 2724
  2. 4602
  3. 6687
  4. 5691
  5. 1380
  6. 3380
  7. 2268
  8. 1818
  9. 6888
  10. 873
  11. 4416
  12. 7398
  13. 740
  14. 8442
  15. 5194
  16. 2625
  17. 858
  18. 5635
  19. 2310
  20. 5949
  21. 864
  22. 2996
  23. 6811
  24. 2469
  25. 6426
  26. 4212
  27. 3380
  28. 768
  29. 4470
  30. 3619
  31. 875
  32. 3320
  33. 7713
  34. 1404
  35. 5472
  36. 1968
  37. 951
  38. 775
  39. 3789
  40. 3676

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