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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 753 · 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. 1.713 × 9 =
  2. 2.182 × 3 =
  3. 3.371 × 7 =
  4. 4.658 × 3 =
  5. 5.527 × 3 =
  6. 6.361 × 8 =
  7. 7.361 × 4 =
  8. 8.495 × 3 =
  9. 9.977 × 9 =
  10. 10.348 × 3 =
  11. 11.981 × 3 =
  12. 12.428 × 9 =
  13. 13.944 × 3 =
  14. 14.404 × 9 =
  15. 15.641 × 7 =
  16. 16.778 × 4 =
  17. 17.785 × 7 =
  18. 18.814 × 3 =
  19. 19.478 × 5 =
  20. 20.876 × 5 =
  21. 21.421 × 7 =
  22. 22.367 × 3 =
  23. 23.209 × 4 =
  24. 24.244 × 9 =
  25. 25.702 × 8 =
  26. 26.509 × 8 =
  27. 27.331 × 5 =
  28. 28.813 × 8 =
  29. 29.352 × 5 =
  30. 30.875 × 5 =
  31. 31.146 × 3 =
  32. 32.884 × 5 =
  33. 33.859 × 6 =
  34. 34.602 × 6 =
  35. 35.125 × 8 =
  36. 36.372 × 9 =
  37. 37.174 × 9 =
  38. 38.331 × 6 =
  39. 39.486 × 8 =
  40. 40.923 × 3 =

Answer key

  1. 6417
  2. 546
  3. 2597
  4. 1974
  5. 1581
  6. 2888
  7. 1444
  8. 1485
  9. 8793
  10. 1044
  11. 2943
  12. 3852
  13. 2832
  14. 3636
  15. 4487
  16. 3112
  17. 5495
  18. 2442
  19. 2390
  20. 4380
  21. 2947
  22. 1101
  23. 836
  24. 2196
  25. 5616
  26. 4072
  27. 1655
  28. 6504
  29. 1760
  30. 4375
  31. 438
  32. 4420
  33. 5154
  34. 3612
  35. 1000
  36. 3348
  37. 1566
  38. 1986
  39. 3888
  40. 2769

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