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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 456 · 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. 1.377 × 4 =
  2. 2.858 × 4 =
  3. 3.957 × 9 =
  4. 4.531 × 8 =
  5. 5.394 × 6 =
  6. 6.781 × 3 =
  7. 7.783 × 6 =
  8. 8.197 × 3 =
  9. 9.738 × 6 =
  10. 10.488 × 3 =
  11. 11.988 × 3 =
  12. 12.506 × 4 =
  13. 13.186 × 6 =
  14. 14.905 × 3 =
  15. 15.731 × 6 =
  16. 16.241 × 3 =
  17. 17.643 × 5 =
  18. 18.934 × 5 =
  19. 19.543 × 6 =
  20. 20.316 × 4 =
  21. 21.281 × 9 =
  22. 22.182 × 4 =
  23. 23.398 × 9 =
  24. 24.916 × 8 =
  25. 25.901 × 3 =
  26. 26.591 × 9 =
  27. 27.716 × 4 =
  28. 28.329 × 3 =
  29. 29.323 × 6 =
  30. 30.581 × 5 =
  31. 31.501 × 3 =
  32. 32.126 × 6 =
  33. 33.481 × 7 =
  34. 34.864 × 3 =
  35. 35.344 × 4 =
  36. 36.571 × 4 =
  37. 37.348 × 5 =
  38. 38.564 × 3 =
  39. 39.243 × 6 =
  40. 40.179 × 6 =

Answer key

  1. 1508
  2. 3432
  3. 8613
  4. 4248
  5. 2364
  6. 2343
  7. 4698
  8. 591
  9. 4428
  10. 1464
  11. 2964
  12. 2024
  13. 1116
  14. 2715
  15. 4386
  16. 723
  17. 3215
  18. 4670
  19. 3258
  20. 1264
  21. 2529
  22. 728
  23. 3582
  24. 7328
  25. 2703
  26. 5319
  27. 2864
  28. 987
  29. 1938
  30. 2905
  31. 1503
  32. 756
  33. 3367
  34. 2592
  35. 1376
  36. 2284
  37. 1740
  38. 1692
  39. 1458
  40. 1074

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