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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 195 · 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. 1.201 × 5 =
  2. 2.872 × 4 =
  3. 3.644 × 4 =
  4. 4.602 × 6 =
  5. 5.502 × 3 =
  6. 6.296 × 5 =
  7. 7.361 × 4 =
  8. 8.466 × 5 =
  9. 9.386 × 4 =
  10. 10.479 × 6 =
  11. 11.491 × 9 =
  12. 12.353 × 7 =
  13. 13.817 × 9 =
  14. 14.834 × 8 =
  15. 15.701 × 6 =
  16. 16.525 × 6 =
  17. 17.898 × 8 =
  18. 18.511 × 6 =
  19. 19.813 × 5 =
  20. 20.729 × 9 =
  21. 21.457 × 9 =
  22. 22.324 × 7 =
  23. 23.583 × 3 =
  24. 24.377 × 9 =
  25. 25.704 × 9 =
  26. 26.283 × 9 =
  27. 27.967 × 8 =
  28. 28.189 × 8 =
  29. 29.825 × 9 =
  30. 30.786 × 5 =
  31. 31.635 × 9 =
  32. 32.581 × 8 =
  33. 33.141 × 6 =
  34. 34.611 × 5 =
  35. 35.265 × 7 =
  36. 36.397 × 4 =
  37. 37.354 × 4 =
  38. 38.418 × 5 =
  39. 39.574 × 3 =
  40. 40.121 × 3 =

Answer key

  1. 1005
  2. 3488
  3. 2576
  4. 3612
  5. 1506
  6. 1480
  7. 1444
  8. 2330
  9. 1544
  10. 2874
  11. 4419
  12. 2471
  13. 7353
  14. 6672
  15. 4206
  16. 3150
  17. 7184
  18. 3066
  19. 4065
  20. 6561
  21. 4113
  22. 2268
  23. 1749
  24. 3393
  25. 6336
  26. 2547
  27. 7736
  28. 1512
  29. 7425
  30. 3930
  31. 5715
  32. 4648
  33. 846
  34. 3055
  35. 1855
  36. 1588
  37. 1416
  38. 2090
  39. 1722
  40. 363

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