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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 88 · 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. 1.495 × 3 =
  2. 2.126 × 4 =
  3. 3.585 × 4 =
  4. 4.339 × 4 =
  5. 5.331 × 6 =
  6. 6.778 × 3 =
  7. 7.333 × 3 =
  8. 8.394 × 6 =
  9. 9.316 × 6 =
  10. 10.529 × 3 =
  11. 11.353 × 7 =
  12. 12.923 × 4 =
  13. 13.951 × 5 =
  14. 14.719 × 5 =
  15. 15.898 × 9 =
  16. 16.244 × 9 =
  17. 17.726 × 9 =
  18. 18.575 × 7 =
  19. 19.683 × 9 =
  20. 20.839 × 8 =
  21. 21.727 × 8 =
  22. 22.735 × 3 =
  23. 23.516 × 9 =
  24. 24.162 × 9 =
  25. 25.633 × 9 =
  26. 26.275 × 6 =
  27. 27.279 × 3 =
  28. 28.864 × 4 =
  29. 29.688 × 3 =
  30. 30.132 × 5 =
  31. 31.271 × 6 =
  32. 32.947 × 4 =
  33. 33.673 × 5 =
  34. 34.472 × 6 =
  35. 35.392 × 3 =
  36. 36.358 × 4 =
  37. 37.119 × 5 =
  38. 38.368 × 9 =
  39. 39.358 × 9 =
  40. 40.669 × 6 =

Answer key

  1. 1485
  2. 504
  3. 2340
  4. 1356
  5. 1986
  6. 2334
  7. 999
  8. 2364
  9. 1896
  10. 1587
  11. 2471
  12. 3692
  13. 4755
  14. 3595
  15. 8082
  16. 2196
  17. 6534
  18. 4025
  19. 6147
  20. 6712
  21. 5816
  22. 2205
  23. 4644
  24. 1458
  25. 5697
  26. 1650
  27. 837
  28. 3456
  29. 2064
  30. 660
  31. 1626
  32. 3788
  33. 3365
  34. 2832
  35. 1176
  36. 1432
  37. 595
  38. 3312
  39. 3222
  40. 4014

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