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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 136 · 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. 1.491 × 5 =
  2. 2.981 × 7 =
  3. 3.661 × 8 =
  4. 4.611 × 8 =
  5. 5.448 × 5 =
  6. 6.972 × 5 =
  7. 7.178 × 3 =
  8. 8.981 × 5 =
  9. 9.449 × 6 =
  10. 10.569 × 3 =
  11. 11.974 × 6 =
  12. 12.331 × 6 =
  13. 13.402 × 9 =
  14. 14.666 × 9 =
  15. 15.372 × 8 =
  16. 16.686 × 4 =
  17. 17.682 × 8 =
  18. 18.941 × 5 =
  19. 19.342 × 7 =
  20. 20.531 × 3 =
  21. 21.772 × 3 =
  22. 22.884 × 7 =
  23. 23.574 × 4 =
  24. 24.632 × 6 =
  25. 25.316 × 4 =
  26. 26.116 × 5 =
  27. 27.121 × 5 =
  28. 28.285 × 7 =
  29. 29.443 × 9 =
  30. 30.921 × 8 =
  31. 31.937 × 8 =
  32. 32.179 × 3 =
  33. 33.607 × 5 =
  34. 34.571 × 4 =
  35. 35.821 × 6 =
  36. 36.743 × 7 =
  37. 37.698 × 4 =
  38. 38.126 × 5 =
  39. 39.337 × 9 =
  40. 40.918 × 5 =

Answer key

  1. 2455
  2. 6867
  3. 5288
  4. 4888
  5. 2240
  6. 4860
  7. 534
  8. 4905
  9. 2694
  10. 1707
  11. 5844
  12. 1986
  13. 3618
  14. 5994
  15. 2976
  16. 2744
  17. 5456
  18. 4705
  19. 2394
  20. 1593
  21. 2316
  22. 6188
  23. 2296
  24. 3792
  25. 1264
  26. 580
  27. 605
  28. 1995
  29. 3987
  30. 7368
  31. 7496
  32. 537
  33. 3035
  34. 2284
  35. 4926
  36. 5201
  37. 2792
  38. 630
  39. 3033
  40. 4590

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