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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 95 · 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. 1.459 × 9 =
  2. 2.958 × 7 =
  3. 3.907 × 9 =
  4. 4.875 × 8 =
  5. 5.511 × 8 =
  6. 6.802 × 8 =
  7. 7.519 × 3 =
  8. 8.623 × 6 =
  9. 9.918 × 6 =
  10. 10.441 × 3 =
  11. 11.733 × 9 =
  12. 12.736 × 8 =
  13. 13.317 × 5 =
  14. 14.628 × 5 =
  15. 15.514 × 5 =
  16. 16.885 × 7 =
  17. 17.846 × 4 =
  18. 18.311 × 4 =
  19. 19.562 × 6 =
  20. 20.401 × 7 =
  21. 21.622 × 9 =
  22. 22.271 × 4 =
  23. 23.982 × 3 =
  24. 24.972 × 3 =
  25. 25.669 × 7 =
  26. 26.787 × 3 =
  27. 27.398 × 9 =
  28. 28.444 × 7 =
  29. 29.799 × 4 =
  30. 30.839 × 6 =
  31. 31.966 × 8 =
  32. 32.599 × 4 =
  33. 33.875 × 6 =
  34. 34.154 × 8 =
  35. 35.312 × 3 =
  36. 36.536 × 4 =
  37. 37.658 × 4 =
  38. 38.173 × 4 =
  39. 39.531 × 7 =
  40. 40.871 × 6 =

Answer key

  1. 4131
  2. 6706
  3. 8163
  4. 7000
  5. 4088
  6. 6416
  7. 1557
  8. 3738
  9. 5508
  10. 1323
  11. 6597
  12. 5888
  13. 1585
  14. 3140
  15. 2570
  16. 6195
  17. 3384
  18. 1244
  19. 3372
  20. 2807
  21. 5598
  22. 1084
  23. 2946
  24. 2916
  25. 4683
  26. 2361
  27. 3582
  28. 3108
  29. 3196
  30. 5034
  31. 7728
  32. 2396
  33. 5250
  34. 1232
  35. 936
  36. 2144
  37. 2632
  38. 692
  39. 3717
  40. 5226

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