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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 329 · 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. 1.369 × 8 =
  2. 2.234 × 3 =
  3. 3.671 × 8 =
  4. 4.561 × 3 =
  5. 5.574 × 7 =
  6. 6.163 × 5 =
  7. 7.521 × 6 =
  8. 8.364 × 3 =
  9. 9.113 × 3 =
  10. 10.223 × 9 =
  11. 11.184 × 8 =
  12. 12.257 × 3 =
  13. 13.926 × 8 =
  14. 14.368 × 3 =
  15. 15.469 × 6 =
  16. 16.331 × 3 =
  17. 17.424 × 5 =
  18. 18.623 × 3 =
  19. 19.194 × 3 =
  20. 20.656 × 8 =
  21. 21.135 × 4 =
  22. 22.451 × 7 =
  23. 23.742 × 4 =
  24. 24.651 × 3 =
  25. 25.243 × 3 =
  26. 26.798 × 3 =
  27. 27.274 × 3 =
  28. 28.333 × 8 =
  29. 29.121 × 8 =
  30. 30.487 × 8 =
  31. 31.434 × 3 =
  32. 32.781 × 3 =
  33. 33.924 × 8 =
  34. 34.858 × 8 =
  35. 35.135 × 6 =
  36. 36.251 × 8 =
  37. 37.471 × 3 =
  38. 38.631 × 4 =
  39. 39.832 × 9 =
  40. 40.753 × 5 =

Answer key

  1. 2952
  2. 702
  3. 5368
  4. 1683
  5. 4018
  6. 815
  7. 3126
  8. 1092
  9. 339
  10. 2007
  11. 1472
  12. 771
  13. 7408
  14. 1104
  15. 2814
  16. 993
  17. 2120
  18. 1869
  19. 582
  20. 5248
  21. 540
  22. 3157
  23. 2968
  24. 1953
  25. 729
  26. 2394
  27. 822
  28. 2664
  29. 968
  30. 3896
  31. 1302
  32. 2343
  33. 7392
  34. 6864
  35. 810
  36. 2008
  37. 1413
  38. 2524
  39. 7488
  40. 3765

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