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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 652 · 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. 1.351 × 9 =
  2. 2.399 × 8 =
  3. 3.742 × 9 =
  4. 4.297 × 8 =
  5. 5.614 × 3 =
  6. 6.307 × 5 =
  7. 7.763 × 9 =
  8. 8.945 × 6 =
  9. 9.772 × 3 =
  10. 10.262 × 3 =
  11. 11.271 × 4 =
  12. 12.587 × 8 =
  13. 13.481 × 3 =
  14. 14.277 × 9 =
  15. 15.459 × 5 =
  16. 16.243 × 3 =
  17. 17.509 × 9 =
  18. 18.585 × 9 =
  19. 19.849 × 9 =
  20. 20.321 × 6 =
  21. 21.698 × 9 =
  22. 22.315 × 9 =
  23. 23.545 × 9 =
  24. 24.121 × 3 =
  25. 25.744 × 6 =
  26. 26.469 × 5 =
  27. 27.288 × 3 =
  28. 28.642 × 5 =
  29. 29.615 × 7 =
  30. 30.423 × 6 =
  31. 31.441 × 6 =
  32. 32.128 × 4 =
  33. 33.587 × 7 =
  34. 34.981 × 5 =
  35. 35.539 × 9 =
  36. 36.701 × 6 =
  37. 37.227 × 9 =
  38. 38.551 × 5 =
  39. 39.647 × 3 =
  40. 40.114 × 6 =

Answer key

  1. 3159
  2. 3192
  3. 6678
  4. 2376
  5. 1842
  6. 1535
  7. 6867
  8. 5670
  9. 2316
  10. 786
  11. 1084
  12. 4696
  13. 1443
  14. 2493
  15. 2295
  16. 729
  17. 4581
  18. 5265
  19. 7641
  20. 1926
  21. 6282
  22. 2835
  23. 4905
  24. 363
  25. 4464
  26. 2345
  27. 864
  28. 3210
  29. 4305
  30. 2538
  31. 2646
  32. 512
  33. 4109
  34. 4905
  35. 4851
  36. 4206
  37. 2043
  38. 2755
  39. 1941
  40. 684

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