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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 697 · 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. 1.152 × 5 =
  2. 2.635 × 3 =
  3. 3.413 × 4 =
  4. 4.441 × 7 =
  5. 5.282 × 6 =
  6. 6.342 × 5 =
  7. 7.877 × 5 =
  8. 8.179 × 7 =
  9. 9.392 × 6 =
  10. 10.926 × 9 =
  11. 11.501 × 7 =
  12. 12.728 × 5 =
  13. 13.624 × 6 =
  14. 14.742 × 8 =
  15. 15.739 × 8 =
  16. 16.771 × 6 =
  17. 17.851 × 3 =
  18. 18.445 × 8 =
  19. 19.301 × 5 =
  20. 20.302 × 9 =
  21. 21.348 × 9 =
  22. 22.156 × 6 =
  23. 23.838 × 4 =
  24. 24.388 × 5 =
  25. 25.476 × 8 =
  26. 26.841 × 6 =
  27. 27.701 × 9 =
  28. 28.346 × 8 =
  29. 29.316 × 7 =
  30. 30.594 × 7 =
  31. 31.858 × 6 =
  32. 32.177 × 9 =
  33. 33.566 × 3 =
  34. 34.431 × 4 =
  35. 35.917 × 3 =
  36. 36.191 × 6 =
  37. 37.722 × 4 =
  38. 38.496 × 3 =
  39. 39.239 × 7 =
  40. 40.171 × 5 =

Answer key

  1. 760
  2. 1905
  3. 1652
  4. 3087
  5. 1692
  6. 1710
  7. 4385
  8. 1253
  9. 2352
  10. 8334
  11. 3507
  12. 3640
  13. 3744
  14. 5936
  15. 5912
  16. 4626
  17. 2553
  18. 3560
  19. 1505
  20. 2718
  21. 3132
  22. 936
  23. 3352
  24. 1940
  25. 3808
  26. 5046
  27. 6309
  28. 2768
  29. 2212
  30. 4158
  31. 5148
  32. 1593
  33. 1698
  34. 1724
  35. 2751
  36. 1146
  37. 2888
  38. 1488
  39. 1673
  40. 855

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