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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 639 · 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. 1.645 × 5 =
  2. 2.864 × 9 =
  3. 3.982 × 7 =
  4. 4.494 × 4 =
  5. 5.301 × 8 =
  6. 6.964 × 4 =
  7. 7.507 × 4 =
  8. 8.324 × 6 =
  9. 9.751 × 4 =
  10. 10.486 × 4 =
  11. 11.458 × 8 =
  12. 12.698 × 9 =
  13. 13.851 × 9 =
  14. 14.193 × 3 =
  15. 15.681 × 3 =
  16. 16.919 × 8 =
  17. 17.899 × 5 =
  18. 18.525 × 9 =
  19. 19.327 × 7 =
  20. 20.547 × 3 =
  21. 21.138 × 3 =
  22. 22.588 × 8 =
  23. 23.253 × 3 =
  24. 24.331 × 5 =
  25. 25.853 × 9 =
  26. 26.512 × 5 =
  27. 27.535 × 9 =
  28. 28.323 × 7 =
  29. 29.161 × 7 =
  30. 30.732 × 5 =
  31. 31.199 × 7 =
  32. 32.324 × 9 =
  33. 33.836 × 3 =
  34. 34.704 × 4 =
  35. 35.781 × 7 =
  36. 36.414 × 4 =
  37. 37.373 × 3 =
  38. 38.147 × 3 =
  39. 39.276 × 6 =
  40. 40.825 × 8 =

Answer key

  1. 3225
  2. 7776
  3. 6874
  4. 1976
  5. 2408
  6. 3856
  7. 2028
  8. 1944
  9. 3004
  10. 1944
  11. 3664
  12. 6282
  13. 7659
  14. 579
  15. 2043
  16. 7352
  17. 4495
  18. 4725
  19. 2289
  20. 1641
  21. 414
  22. 4704
  23. 759
  24. 1655
  25. 7677
  26. 2560
  27. 4815
  28. 2261
  29. 1127
  30. 3660
  31. 1393
  32. 2916
  33. 2508
  34. 2816
  35. 5467
  36. 1656
  37. 1119
  38. 441
  39. 1656
  40. 6600

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