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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 700 · 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. 1.284 × 5 =
  2. 2.773 × 8 =
  3. 3.112 × 3 =
  4. 4.581 × 7 =
  5. 5.652 × 7 =
  6. 6.303 × 7 =
  7. 7.179 × 4 =
  8. 8.745 × 9 =
  9. 9.193 × 3 =
  10. 10.148 × 8 =
  11. 11.187 × 8 =
  12. 12.287 × 8 =
  13. 13.498 × 9 =
  14. 14.217 × 9 =
  15. 15.716 × 9 =
  16. 16.327 × 6 =
  17. 17.524 × 7 =
  18. 18.501 × 9 =
  19. 19.801 × 3 =
  20. 20.552 × 7 =
  21. 21.565 × 6 =
  22. 22.404 × 6 =
  23. 23.905 × 8 =
  24. 24.811 × 3 =
  25. 25.551 × 3 =
  26. 26.505 × 6 =
  27. 27.412 × 8 =
  28. 28.521 × 3 =
  29. 29.754 × 3 =
  30. 30.859 × 5 =
  31. 31.183 × 4 =
  32. 32.731 × 5 =
  33. 33.365 × 8 =
  34. 34.548 × 8 =
  35. 35.913 × 9 =
  36. 36.566 × 3 =
  37. 37.484 × 8 =
  38. 38.368 × 7 =
  39. 39.568 × 5 =
  40. 40.784 × 4 =

Answer key

  1. 1420
  2. 6184
  3. 336
  4. 4067
  5. 4564
  6. 2121
  7. 716
  8. 6705
  9. 579
  10. 1184
  11. 1496
  12. 2296
  13. 4482
  14. 1953
  15. 6444
  16. 1962
  17. 3668
  18. 4509
  19. 2403
  20. 3864
  21. 3390
  22. 2424
  23. 7240
  24. 2433
  25. 1653
  26. 3030
  27. 3296
  28. 1563
  29. 2262
  30. 4295
  31. 732
  32. 3655
  33. 2920
  34. 4384
  35. 8217
  36. 1698
  37. 3872
  38. 2576
  39. 2840
  40. 3136

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