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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 736 · 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. 1.664 × 5 =
  2. 2.139 × 6 =
  3. 3.649 × 9 =
  4. 4.526 × 9 =
  5. 5.641 × 8 =
  6. 6.749 × 4 =
  7. 7.522 × 5 =
  8. 8.554 × 4 =
  9. 9.525 × 8 =
  10. 10.511 × 3 =
  11. 11.783 × 6 =
  12. 12.202 × 3 =
  13. 13.939 × 8 =
  14. 14.821 × 7 =
  15. 15.227 × 9 =
  16. 16.113 × 4 =
  17. 17.683 × 9 =
  18. 18.381 × 7 =
  19. 19.679 × 3 =
  20. 20.176 × 4 =
  21. 21.715 × 8 =
  22. 22.115 × 3 =
  23. 23.554 × 8 =
  24. 24.298 × 9 =
  25. 25.507 × 7 =
  26. 26.662 × 5 =
  27. 27.967 × 3 =
  28. 28.801 × 9 =
  29. 29.658 × 7 =
  30. 30.167 × 6 =
  31. 31.644 × 4 =
  32. 32.177 × 3 =
  33. 33.847 × 4 =
  34. 34.444 × 8 =
  35. 35.569 × 3 =
  36. 36.151 × 3 =
  37. 37.595 × 6 =
  38. 38.456 × 7 =
  39. 39.141 × 3 =
  40. 40.175 × 5 =

Answer key

  1. 3320
  2. 834
  3. 5841
  4. 4734
  5. 5128
  6. 2996
  7. 2610
  8. 2216
  9. 4200
  10. 1533
  11. 4698
  12. 606
  13. 7512
  14. 5747
  15. 2043
  16. 452
  17. 6147
  18. 2667
  19. 2037
  20. 704
  21. 5720
  22. 345
  23. 4432
  24. 2682
  25. 3549
  26. 3310
  27. 2901
  28. 7209
  29. 4606
  30. 1002
  31. 2576
  32. 531
  33. 3388
  34. 3552
  35. 1707
  36. 453
  37. 3570
  38. 3192
  39. 423
  40. 875

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