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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 147 · 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. 1.381 × 4 =
  2. 2.572 × 6 =
  3. 3.251 × 6 =
  4. 4.473 × 3 =
  5. 5.221 × 6 =
  6. 6.373 × 4 =
  7. 7.605 × 3 =
  8. 8.147 × 4 =
  9. 9.638 × 6 =
  10. 10.183 × 7 =
  11. 11.722 × 6 =
  12. 12.641 × 8 =
  13. 13.969 × 8 =
  14. 14.945 × 6 =
  15. 15.816 × 4 =
  16. 16.132 × 9 =
  17. 17.294 × 5 =
  18. 18.235 × 5 =
  19. 19.453 × 7 =
  20. 20.667 × 6 =
  21. 21.908 × 8 =
  22. 22.634 × 3 =
  23. 23.331 × 7 =
  24. 24.205 × 7 =
  25. 25.128 × 3 =
  26. 26.161 × 9 =
  27. 27.331 × 4 =
  28. 28.605 × 9 =
  29. 29.572 × 7 =
  30. 30.978 × 3 =
  31. 31.906 × 5 =
  32. 32.153 × 7 =
  33. 33.588 × 9 =
  34. 34.429 × 6 =
  35. 35.468 × 6 =
  36. 36.283 × 4 =
  37. 37.399 × 5 =
  38. 38.694 × 6 =
  39. 39.989 × 4 =
  40. 40.353 × 3 =

Answer key

  1. 1524
  2. 3432
  3. 1506
  4. 1419
  5. 1326
  6. 1492
  7. 1815
  8. 588
  9. 3828
  10. 1281
  11. 4332
  12. 5128
  13. 7752
  14. 5670
  15. 3264
  16. 1188
  17. 1470
  18. 1175
  19. 3171
  20. 4002
  21. 7264
  22. 1902
  23. 2317
  24. 1435
  25. 384
  26. 1449
  27. 1324
  28. 5445
  29. 4004
  30. 2934
  31. 4530
  32. 1071
  33. 5292
  34. 2574
  35. 2808
  36. 1132
  37. 1995
  38. 4164
  39. 3956
  40. 1059

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