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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 445 · 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. 1.613 × 7 =
  2. 2.552 × 6 =
  3. 3.411 × 7 =
  4. 4.649 × 3 =
  5. 5.853 × 6 =
  6. 6.845 × 7 =
  7. 7.861 × 6 =
  8. 8.253 × 4 =
  9. 9.693 × 3 =
  10. 10.576 × 8 =
  11. 11.272 × 8 =
  12. 12.146 × 4 =
  13. 13.425 × 3 =
  14. 14.189 × 9 =
  15. 15.959 × 6 =
  16. 16.167 × 5 =
  17. 17.529 × 8 =
  18. 18.853 × 4 =
  19. 19.505 × 5 =
  20. 20.711 × 7 =
  21. 21.849 × 7 =
  22. 22.871 × 3 =
  23. 23.793 × 7 =
  24. 24.546 × 9 =
  25. 25.633 × 7 =
  26. 26.459 × 3 =
  27. 27.534 × 3 =
  28. 28.484 × 6 =
  29. 29.978 × 6 =
  30. 30.321 × 6 =
  31. 31.809 × 3 =
  32. 32.808 × 8 =
  33. 33.754 × 4 =
  34. 34.171 × 5 =
  35. 35.523 × 7 =
  36. 36.637 × 6 =
  37. 37.181 × 6 =
  38. 38.273 × 5 =
  39. 39.384 × 6 =
  40. 40.596 × 8 =

Answer key

  1. 4291
  2. 3312
  3. 2877
  4. 1947
  5. 5118
  6. 5915
  7. 5166
  8. 1012
  9. 2079
  10. 4608
  11. 2176
  12. 584
  13. 1275
  14. 1701
  15. 5754
  16. 835
  17. 4232
  18. 3412
  19. 2525
  20. 4977
  21. 5943
  22. 2613
  23. 5551
  24. 4914
  25. 4431
  26. 1377
  27. 1602
  28. 2904
  29. 5868
  30. 1926
  31. 2427
  32. 6464
  33. 3016
  34. 855
  35. 3661
  36. 3822
  37. 1086
  38. 1365
  39. 2304
  40. 4768

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