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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 426 · 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. 1.561 × 5 =
  2. 2.182 × 3 =
  3. 3.661 × 6 =
  4. 4.121 × 4 =
  5. 5.937 × 3 =
  6. 6.858 × 7 =
  7. 7.402 × 6 =
  8. 8.407 × 3 =
  9. 9.961 × 9 =
  10. 10.572 × 6 =
  11. 11.113 × 9 =
  12. 12.328 × 3 =
  13. 13.497 × 7 =
  14. 14.275 × 9 =
  15. 15.231 × 6 =
  16. 16.207 × 6 =
  17. 17.882 × 5 =
  18. 18.192 × 6 =
  19. 19.498 × 9 =
  20. 20.472 × 6 =
  21. 21.629 × 6 =
  22. 22.814 × 9 =
  23. 23.472 × 5 =
  24. 24.162 × 5 =
  25. 25.971 × 9 =
  26. 26.972 × 7 =
  27. 27.337 × 3 =
  28. 28.311 × 7 =
  29. 29.644 × 8 =
  30. 30.191 × 8 =
  31. 31.568 × 6 =
  32. 32.632 × 4 =
  33. 33.638 × 7 =
  34. 34.333 × 7 =
  35. 35.857 × 9 =
  36. 36.203 × 4 =
  37. 37.721 × 3 =
  38. 38.561 × 8 =
  39. 39.168 × 6 =
  40. 40.153 × 7 =

Answer key

  1. 2805
  2. 546
  3. 3966
  4. 484
  5. 2811
  6. 6006
  7. 2412
  8. 1221
  9. 8649
  10. 3432
  11. 1017
  12. 984
  13. 3479
  14. 2475
  15. 1386
  16. 1242
  17. 4410
  18. 1152
  19. 4482
  20. 2832
  21. 3774
  22. 7326
  23. 2360
  24. 810
  25. 8739
  26. 6804
  27. 1011
  28. 2177
  29. 5152
  30. 1528
  31. 3408
  32. 2528
  33. 4466
  34. 2331
  35. 7713
  36. 812
  37. 2163
  38. 4488
  39. 1008
  40. 1071

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