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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 170 · 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. 1.814 × 4 =
  2. 2.741 × 4 =
  3. 3.154 × 8 =
  4. 4.154 × 4 =
  5. 5.538 × 3 =
  6. 6.805 × 6 =
  7. 7.667 × 6 =
  8. 8.617 × 7 =
  9. 9.785 × 5 =
  10. 10.712 × 7 =
  11. 11.526 × 6 =
  12. 12.751 × 5 =
  13. 13.589 × 4 =
  14. 14.217 × 4 =
  15. 15.231 × 8 =
  16. 16.361 × 7 =
  17. 17.291 × 3 =
  18. 18.645 × 6 =
  19. 19.531 × 8 =
  20. 20.855 × 8 =
  21. 21.753 × 4 =
  22. 22.368 × 7 =
  23. 23.707 × 7 =
  24. 24.257 × 9 =
  25. 25.581 × 6 =
  26. 26.831 × 7 =
  27. 27.454 × 8 =
  28. 28.935 × 4 =
  29. 29.389 × 7 =
  30. 30.341 × 6 =
  31. 31.726 × 6 =
  32. 32.877 × 3 =
  33. 33.623 × 3 =
  34. 34.912 × 6 =
  35. 35.222 × 6 =
  36. 36.427 × 9 =
  37. 37.698 × 5 =
  38. 38.112 × 8 =
  39. 39.962 × 4 =
  40. 40.685 × 5 =

Answer key

  1. 3256
  2. 2964
  3. 1232
  4. 616
  5. 1614
  6. 4830
  7. 4002
  8. 4319
  9. 3925
  10. 4984
  11. 3156
  12. 3755
  13. 2356
  14. 868
  15. 1848
  16. 2527
  17. 873
  18. 3870
  19. 4248
  20. 6840
  21. 3012
  22. 2576
  23. 4949
  24. 2313
  25. 3486
  26. 5817
  27. 3632
  28. 3740
  29. 2723
  30. 2046
  31. 4356
  32. 2631
  33. 1869
  34. 5472
  35. 1332
  36. 3843
  37. 3490
  38. 896
  39. 3848
  40. 3425

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