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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 80 · 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. 1.891 × 8 =
  2. 2.761 × 9 =
  3. 3.132 × 5 =
  4. 4.744 × 3 =
  5. 5.836 × 8 =
  6. 6.325 × 7 =
  7. 7.643 × 8 =
  8. 8.335 × 8 =
  9. 9.403 × 3 =
  10. 10.624 × 8 =
  11. 11.703 × 5 =
  12. 12.299 × 5 =
  13. 13.429 × 4 =
  14. 14.455 × 5 =
  15. 15.475 × 5 =
  16. 16.583 × 7 =
  17. 17.533 × 6 =
  18. 18.741 × 6 =
  19. 19.946 × 7 =
  20. 20.771 × 4 =
  21. 21.608 × 7 =
  22. 22.605 × 4 =
  23. 23.181 × 5 =
  24. 24.634 × 9 =
  25. 25.284 × 5 =
  26. 26.772 × 5 =
  27. 27.802 × 7 =
  28. 28.592 × 9 =
  29. 29.979 × 3 =
  30. 30.592 × 4 =
  31. 31.987 × 3 =
  32. 32.126 × 3 =
  33. 33.877 × 7 =
  34. 34.237 × 3 =
  35. 35.859 × 3 =
  36. 36.264 × 6 =
  37. 37.887 × 7 =
  38. 38.931 × 4 =
  39. 39.799 × 4 =
  40. 40.942 × 3 =

Answer key

  1. 7128
  2. 6849
  3. 660
  4. 2232
  5. 6688
  6. 2275
  7. 5144
  8. 2680
  9. 1209
  10. 4992
  11. 3515
  12. 1495
  13. 1716
  14. 2275
  15. 2375
  16. 4081
  17. 3198
  18. 4446
  19. 6622
  20. 3084
  21. 4256
  22. 2420
  23. 905
  24. 5706
  25. 1420
  26. 3860
  27. 5614
  28. 5328
  29. 2937
  30. 2368
  31. 2961
  32. 378
  33. 6139
  34. 711
  35. 2577
  36. 1584
  37. 6209
  38. 3724
  39. 3196
  40. 2826

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