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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 643 · 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. 1.412 × 7 =
  2. 2.512 × 3 =
  3. 3.291 × 4 =
  4. 4.846 × 8 =
  5. 5.177 × 9 =
  6. 6.894 × 4 =
  7. 7.691 × 3 =
  8. 8.727 × 5 =
  9. 9.263 × 4 =
  10. 10.142 × 7 =
  11. 11.618 × 8 =
  12. 12.914 × 4 =
  13. 13.756 × 9 =
  14. 14.122 × 4 =
  15. 15.232 × 8 =
  16. 16.467 × 9 =
  17. 17.224 × 6 =
  18. 18.389 × 7 =
  19. 19.836 × 7 =
  20. 20.766 × 4 =
  21. 21.844 × 5 =
  22. 22.888 × 7 =
  23. 23.371 × 9 =
  24. 24.697 × 9 =
  25. 25.311 × 8 =
  26. 26.671 × 5 =
  27. 27.774 × 5 =
  28. 28.986 × 9 =
  29. 29.554 × 9 =
  30. 30.404 × 3 =
  31. 31.331 × 6 =
  32. 32.608 × 6 =
  33. 33.594 × 4 =
  34. 34.624 × 4 =
  35. 35.302 × 4 =
  36. 36.852 × 5 =
  37. 37.552 × 8 =
  38. 38.337 × 8 =
  39. 39.291 × 6 =
  40. 40.445 × 3 =

Answer key

  1. 2884
  2. 1536
  3. 1164
  4. 6768
  5. 1593
  6. 3576
  7. 2073
  8. 3635
  9. 1052
  10. 994
  11. 4944
  12. 3656
  13. 6804
  14. 488
  15. 1856
  16. 4203
  17. 1344
  18. 2723
  19. 5852
  20. 3064
  21. 4220
  22. 6216
  23. 3339
  24. 6273
  25. 2488
  26. 3355
  27. 3870
  28. 8874
  29. 4986
  30. 1212
  31. 1986
  32. 3648
  33. 2376
  34. 2496
  35. 1208
  36. 4260
  37. 4416
  38. 2696
  39. 1746
  40. 1335

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