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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 85 · 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. 1.326 × 5 =
  2. 2.922 × 5 =
  3. 3.498 × 9 =
  4. 4.692 × 9 =
  5. 5.288 × 5 =
  6. 6.447 × 9 =
  7. 7.245 × 5 =
  8. 8.601 × 5 =
  9. 9.177 × 3 =
  10. 10.571 × 4 =
  11. 11.169 × 3 =
  12. 12.908 × 8 =
  13. 13.516 × 7 =
  14. 14.359 × 9 =
  15. 15.205 × 7 =
  16. 16.579 × 8 =
  17. 17.408 × 3 =
  18. 18.341 × 4 =
  19. 19.868 × 7 =
  20. 20.303 × 9 =
  21. 21.748 × 7 =
  22. 22.221 × 6 =
  23. 23.298 × 8 =
  24. 24.368 × 3 =
  25. 25.236 × 6 =
  26. 26.612 × 7 =
  27. 27.241 × 5 =
  28. 28.344 × 4 =
  29. 29.771 × 5 =
  30. 30.531 × 3 =
  31. 31.138 × 3 =
  32. 32.417 × 8 =
  33. 33.406 × 6 =
  34. 34.372 × 3 =
  35. 35.762 × 9 =
  36. 36.167 × 4 =
  37. 37.856 × 7 =
  38. 38.241 × 6 =
  39. 39.577 × 8 =
  40. 40.486 × 4 =

Answer key

  1. 1630
  2. 4610
  3. 4482
  4. 6228
  5. 1440
  6. 4023
  7. 1225
  8. 3005
  9. 531
  10. 2284
  11. 507
  12. 7264
  13. 3612
  14. 3231
  15. 1435
  16. 4632
  17. 1224
  18. 1364
  19. 6076
  20. 2727
  21. 5236
  22. 1326
  23. 2384
  24. 1104
  25. 1416
  26. 4284
  27. 1205
  28. 1376
  29. 3855
  30. 1593
  31. 414
  32. 3336
  33. 2436
  34. 1116
  35. 6858
  36. 668
  37. 5992
  38. 1446
  39. 4616
  40. 1944

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