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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 616 · 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. 1.458 × 9 =
  2. 2.147 × 3 =
  3. 3.495 × 4 =
  4. 4.211 × 5 =
  5. 5.941 × 5 =
  6. 6.514 × 9 =
  7. 7.665 × 3 =
  8. 8.674 × 9 =
  9. 9.783 × 3 =
  10. 10.175 × 7 =
  11. 11.208 × 4 =
  12. 12.115 × 3 =
  13. 13.898 × 3 =
  14. 14.139 × 3 =
  15. 15.228 × 3 =
  16. 16.672 × 6 =
  17. 17.633 × 6 =
  18. 18.528 × 8 =
  19. 19.883 × 5 =
  20. 20.841 × 7 =
  21. 21.366 × 5 =
  22. 22.474 × 4 =
  23. 23.586 × 3 =
  24. 24.536 × 8 =
  25. 25.526 × 6 =
  26. 26.679 × 6 =
  27. 27.974 × 4 =
  28. 28.912 × 4 =
  29. 29.871 × 3 =
  30. 30.663 × 5 =
  31. 31.135 × 6 =
  32. 32.121 × 3 =
  33. 33.272 × 5 =
  34. 34.821 × 9 =
  35. 35.265 × 3 =
  36. 36.596 × 4 =
  37. 37.791 × 7 =
  38. 38.955 × 6 =
  39. 39.628 × 6 =
  40. 40.811 × 7 =

Answer key

  1. 4122
  2. 441
  3. 1980
  4. 1055
  5. 4705
  6. 4626
  7. 1995
  8. 6066
  9. 2349
  10. 1225
  11. 832
  12. 345
  13. 2694
  14. 417
  15. 684
  16. 4032
  17. 3798
  18. 4224
  19. 4415
  20. 5887
  21. 1830
  22. 1896
  23. 1758
  24. 4288
  25. 3156
  26. 4074
  27. 3896
  28. 3648
  29. 2613
  30. 3315
  31. 810
  32. 363
  33. 1360
  34. 7389
  35. 795
  36. 2384
  37. 5537
  38. 5730
  39. 3768
  40. 5677

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