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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 413 · 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. 1.802 × 9 =
  2. 2.434 × 4 =
  3. 3.548 × 9 =
  4. 4.978 × 4 =
  5. 5.501 × 7 =
  6. 6.665 × 7 =
  7. 7.203 × 4 =
  8. 8.525 × 5 =
  9. 9.321 × 9 =
  10. 10.266 × 3 =
  11. 11.573 × 6 =
  12. 12.396 × 6 =
  13. 13.561 × 5 =
  14. 14.974 × 9 =
  15. 15.122 × 6 =
  16. 16.182 × 6 =
  17. 17.673 × 9 =
  18. 18.435 × 7 =
  19. 19.652 × 5 =
  20. 20.137 × 5 =
  21. 21.974 × 5 =
  22. 22.735 × 8 =
  23. 23.707 × 4 =
  24. 24.731 × 5 =
  25. 25.521 × 7 =
  26. 26.989 × 8 =
  27. 27.576 × 3 =
  28. 28.481 × 4 =
  29. 29.275 × 6 =
  30. 30.283 × 5 =
  31. 31.414 × 3 =
  32. 32.778 × 5 =
  33. 33.285 × 6 =
  34. 34.173 × 3 =
  35. 35.579 × 4 =
  36. 36.421 × 3 =
  37. 37.301 × 5 =
  38. 38.771 × 3 =
  39. 39.353 × 6 =
  40. 40.984 × 5 =

Answer key

  1. 7218
  2. 1736
  3. 4932
  4. 3912
  5. 3507
  6. 4655
  7. 812
  8. 2625
  9. 2889
  10. 798
  11. 3438
  12. 2376
  13. 2805
  14. 8766
  15. 732
  16. 1092
  17. 6057
  18. 3045
  19. 3260
  20. 685
  21. 4870
  22. 5880
  23. 2828
  24. 3655
  25. 3647
  26. 7912
  27. 1728
  28. 1924
  29. 1650
  30. 1415
  31. 1242
  32. 3890
  33. 1710
  34. 519
  35. 2316
  36. 1263
  37. 1505
  38. 2313
  39. 2118
  40. 4920

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