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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 692 · 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. 1.337 × 8 =
  2. 2.926 × 4 =
  3. 3.601 × 9 =
  4. 4.691 × 7 =
  5. 5.515 × 7 =
  6. 6.288 × 9 =
  7. 7.804 × 8 =
  8. 8.576 × 4 =
  9. 9.341 × 9 =
  10. 10.499 × 3 =
  11. 11.311 × 9 =
  12. 12.345 × 4 =
  13. 13.697 × 8 =
  14. 14.266 × 3 =
  15. 15.773 × 9 =
  16. 16.821 × 4 =
  17. 17.275 × 9 =
  18. 18.561 × 3 =
  19. 19.588 × 4 =
  20. 20.938 × 5 =
  21. 21.231 × 6 =
  22. 22.775 × 3 =
  23. 23.709 × 5 =
  24. 24.167 × 8 =
  25. 25.938 × 9 =
  26. 26.207 × 4 =
  27. 27.735 × 6 =
  28. 28.347 × 5 =
  29. 29.343 × 5 =
  30. 30.591 × 3 =
  31. 31.124 × 3 =
  32. 32.349 × 4 =
  33. 33.841 × 5 =
  34. 34.204 × 8 =
  35. 35.661 × 9 =
  36. 36.143 × 7 =
  37. 37.797 × 3 =
  38. 38.198 × 8 =
  39. 39.152 × 3 =
  40. 40.148 × 9 =

Answer key

  1. 2696
  2. 3704
  3. 5409
  4. 4837
  5. 3605
  6. 2592
  7. 6432
  8. 2304
  9. 3069
  10. 1497
  11. 2799
  12. 1380
  13. 5576
  14. 798
  15. 6957
  16. 3284
  17. 2475
  18. 1683
  19. 2352
  20. 4690
  21. 1386
  22. 2325
  23. 3545
  24. 1336
  25. 8442
  26. 828
  27. 4410
  28. 1735
  29. 1715
  30. 1773
  31. 372
  32. 1396
  33. 4205
  34. 1632
  35. 5949
  36. 1001
  37. 2391
  38. 1584
  39. 456
  40. 1332

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