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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 338 · 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. 1.354 × 5 =
  2. 2.542 × 4 =
  3. 3.247 × 7 =
  4. 4.682 × 5 =
  5. 5.549 × 3 =
  6. 6.857 × 3 =
  7. 7.876 × 3 =
  8. 8.249 × 6 =
  9. 9.399 × 9 =
  10. 10.971 × 4 =
  11. 11.337 × 7 =
  12. 12.235 × 5 =
  13. 13.621 × 4 =
  14. 14.875 × 5 =
  15. 15.407 × 3 =
  16. 16.292 × 3 =
  17. 17.551 × 6 =
  18. 18.675 × 7 =
  19. 19.751 × 3 =
  20. 20.782 × 3 =
  21. 21.534 × 3 =
  22. 22.229 × 7 =
  23. 23.402 × 6 =
  24. 24.337 × 4 =
  25. 25.825 × 5 =
  26. 26.174 × 9 =
  27. 27.389 × 8 =
  28. 28.598 × 3 =
  29. 29.596 × 4 =
  30. 30.661 × 3 =
  31. 31.345 × 3 =
  32. 32.452 × 9 =
  33. 33.756 × 3 =
  34. 34.841 × 5 =
  35. 35.405 × 9 =
  36. 36.559 × 3 =
  37. 37.774 × 5 =
  38. 38.761 × 3 =
  39. 39.396 × 4 =
  40. 40.765 × 7 =

Answer key

  1. 1770
  2. 2168
  3. 1729
  4. 3410
  5. 1647
  6. 2571
  7. 2628
  8. 1494
  9. 3591
  10. 3884
  11. 2359
  12. 1175
  13. 2484
  14. 4375
  15. 1221
  16. 876
  17. 3306
  18. 4725
  19. 2253
  20. 2346
  21. 1602
  22. 1603
  23. 2412
  24. 1348
  25. 4125
  26. 1566
  27. 3112
  28. 1794
  29. 2384
  30. 1983
  31. 1035
  32. 4068
  33. 2268
  34. 4205
  35. 3645
  36. 1677
  37. 3870
  38. 2283
  39. 1584
  40. 5355

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