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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 94 · 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. 1.214 × 7 =
  2. 2.941 × 4 =
  3. 3.756 × 3 =
  4. 4.403 × 8 =
  5. 5.215 × 8 =
  6. 6.782 × 9 =
  7. 7.251 × 4 =
  8. 8.677 × 5 =
  9. 9.933 × 8 =
  10. 10.878 × 8 =
  11. 11.298 × 8 =
  12. 12.211 × 5 =
  13. 13.932 × 7 =
  14. 14.491 × 5 =
  15. 15.365 × 6 =
  16. 16.363 × 3 =
  17. 17.851 × 4 =
  18. 18.197 × 8 =
  19. 19.363 × 4 =
  20. 20.268 × 4 =
  21. 21.587 × 8 =
  22. 22.231 × 8 =
  23. 23.831 × 5 =
  24. 24.346 × 6 =
  25. 25.804 × 5 =
  26. 26.762 × 9 =
  27. 27.458 × 6 =
  28. 28.646 × 5 =
  29. 29.967 × 4 =
  30. 30.788 × 8 =
  31. 31.391 × 3 =
  32. 32.768 × 3 =
  33. 33.365 × 9 =
  34. 34.151 × 8 =
  35. 35.747 × 8 =
  36. 36.745 × 7 =
  37. 37.925 × 3 =
  38. 38.607 × 5 =
  39. 39.773 × 3 =
  40. 40.151 × 9 =

Answer key

  1. 1498
  2. 3764
  3. 2268
  4. 3224
  5. 1720
  6. 7038
  7. 1004
  8. 3385
  9. 7464
  10. 7024
  11. 2384
  12. 1055
  13. 6524
  14. 2455
  15. 2190
  16. 1089
  17. 3404
  18. 1576
  19. 1452
  20. 1072
  21. 4696
  22. 1848
  23. 4155
  24. 2076
  25. 4020
  26. 6858
  27. 2748
  28. 3230
  29. 3868
  30. 6304
  31. 1173
  32. 2304
  33. 3285
  34. 1208
  35. 5976
  36. 5215
  37. 2775
  38. 3035
  39. 2319
  40. 1359

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