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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 595 · 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. 1.573 × 8 =
  2. 2.491 × 5 =
  3. 3.159 × 3 =
  4. 4.774 × 6 =
  5. 5.911 × 8 =
  6. 6.562 × 6 =
  7. 7.237 × 4 =
  8. 8.889 × 8 =
  9. 9.571 × 9 =
  10. 10.123 × 3 =
  11. 11.574 × 3 =
  12. 12.235 × 3 =
  13. 13.399 × 3 =
  14. 14.333 × 4 =
  15. 15.316 × 7 =
  16. 16.711 × 4 =
  17. 17.944 × 4 =
  18. 18.799 × 7 =
  19. 19.211 × 3 =
  20. 20.869 × 6 =
  21. 21.304 × 7 =
  22. 22.918 × 5 =
  23. 23.923 × 3 =
  24. 24.243 × 5 =
  25. 25.129 × 5 =
  26. 26.407 × 5 =
  27. 27.586 × 5 =
  28. 28.397 × 3 =
  29. 29.384 × 6 =
  30. 30.222 × 8 =
  31. 31.597 × 3 =
  32. 32.213 × 7 =
  33. 33.494 × 8 =
  34. 34.831 × 8 =
  35. 35.142 × 4 =
  36. 36.178 × 3 =
  37. 37.143 × 6 =
  38. 38.307 × 8 =
  39. 39.161 × 8 =
  40. 40.697 × 7 =

Answer key

  1. 4584
  2. 2455
  3. 477
  4. 4644
  5. 7288
  6. 3372
  7. 948
  8. 7112
  9. 5139
  10. 369
  11. 1722
  12. 705
  13. 1197
  14. 1332
  15. 2212
  16. 2844
  17. 3776
  18. 5593
  19. 633
  20. 5214
  21. 2128
  22. 4590
  23. 2769
  24. 1215
  25. 645
  26. 2035
  27. 2930
  28. 1191
  29. 2304
  30. 1776
  31. 1791
  32. 1491
  33. 3952
  34. 6648
  35. 568
  36. 534
  37. 858
  38. 2456
  39. 1288
  40. 4879

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