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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 389 · 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. 1.739 × 3 =
  2. 2.682 × 4 =
  3. 3.468 × 6 =
  4. 4.815 × 3 =
  5. 5.511 × 4 =
  6. 6.363 × 6 =
  7. 7.538 × 9 =
  8. 8.888 × 8 =
  9. 9.879 × 5 =
  10. 10.676 × 5 =
  11. 11.761 × 8 =
  12. 12.755 × 7 =
  13. 13.212 × 3 =
  14. 14.554 × 9 =
  15. 15.547 × 4 =
  16. 16.712 × 7 =
  17. 17.445 × 9 =
  18. 18.771 × 3 =
  19. 19.953 × 3 =
  20. 20.751 × 9 =
  21. 21.461 × 5 =
  22. 22.147 × 5 =
  23. 23.162 × 4 =
  24. 24.556 × 5 =
  25. 25.415 × 6 =
  26. 26.267 × 5 =
  27. 27.233 × 7 =
  28. 28.515 × 3 =
  29. 29.331 × 7 =
  30. 30.429 × 4 =
  31. 31.631 × 3 =
  32. 32.896 × 5 =
  33. 33.571 × 4 =
  34. 34.164 × 5 =
  35. 35.365 × 4 =
  36. 36.741 × 7 =
  37. 37.573 × 8 =
  38. 38.803 × 6 =
  39. 39.831 × 6 =
  40. 40.704 × 8 =

Answer key

  1. 2217
  2. 2728
  3. 2808
  4. 2445
  5. 2044
  6. 2178
  7. 4842
  8. 7104
  9. 4395
  10. 3380
  11. 6088
  12. 5285
  13. 636
  14. 4986
  15. 2188
  16. 4984
  17. 4005
  18. 2313
  19. 2859
  20. 6759
  21. 2305
  22. 735
  23. 648
  24. 2780
  25. 2490
  26. 1335
  27. 1631
  28. 1545
  29. 2317
  30. 1716
  31. 1893
  32. 4480
  33. 2284
  34. 820
  35. 1460
  36. 5187
  37. 4584
  38. 4818
  39. 4986
  40. 5632

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