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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 572 · 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. 1.477 × 3 =
  2. 2.291 × 7 =
  3. 3.635 × 4 =
  4. 4.583 × 3 =
  5. 5.131 × 7 =
  6. 6.842 × 6 =
  7. 7.489 × 4 =
  8. 8.267 × 8 =
  9. 9.301 × 9 =
  10. 10.611 × 4 =
  11. 11.364 × 4 =
  12. 12.302 × 4 =
  13. 13.973 × 7 =
  14. 14.727 × 8 =
  15. 15.366 × 4 =
  16. 16.965 × 5 =
  17. 17.303 × 5 =
  18. 18.546 × 7 =
  19. 19.281 × 5 =
  20. 20.241 × 6 =
  21. 21.579 × 6 =
  22. 22.404 × 5 =
  23. 23.199 × 3 =
  24. 24.988 × 9 =
  25. 25.978 × 9 =
  26. 26.198 × 5 =
  27. 27.702 × 5 =
  28. 28.201 × 4 =
  29. 29.948 × 4 =
  30. 30.569 × 5 =
  31. 31.728 × 4 =
  32. 32.116 × 4 =
  33. 33.485 × 3 =
  34. 34.769 × 5 =
  35. 35.563 × 9 =
  36. 36.331 × 7 =
  37. 37.494 × 7 =
  38. 38.781 × 5 =
  39. 39.612 × 6 =
  40. 40.507 × 5 =

Answer key

  1. 1431
  2. 2037
  3. 2540
  4. 1749
  5. 917
  6. 5052
  7. 1956
  8. 2136
  9. 2709
  10. 2444
  11. 1456
  12. 1208
  13. 6811
  14. 5816
  15. 1464
  16. 4825
  17. 1515
  18. 3822
  19. 1405
  20. 1446
  21. 3474
  22. 2020
  23. 597
  24. 8892
  25. 8802
  26. 990
  27. 3510
  28. 804
  29. 3792
  30. 2845
  31. 2912
  32. 464
  33. 1455
  34. 3845
  35. 5067
  36. 2317
  37. 3458
  38. 3905
  39. 3672
  40. 2535

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