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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 711 · 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. 1.121 × 5 =
  2. 2.686 × 5 =
  3. 3.321 × 8 =
  4. 4.723 × 9 =
  5. 5.697 × 4 =
  6. 6.183 × 5 =
  7. 7.363 × 9 =
  8. 8.641 × 9 =
  9. 9.692 × 4 =
  10. 10.624 × 7 =
  11. 11.301 × 7 =
  12. 12.193 × 7 =
  13. 13.962 × 3 =
  14. 14.586 × 3 =
  15. 15.569 × 8 =
  16. 16.472 × 5 =
  17. 17.258 × 7 =
  18. 18.565 × 7 =
  19. 19.304 × 4 =
  20. 20.261 × 7 =
  21. 21.259 × 8 =
  22. 22.401 × 8 =
  23. 23.675 × 3 =
  24. 24.383 × 8 =
  25. 25.239 × 3 =
  26. 26.439 × 5 =
  27. 27.181 × 4 =
  28. 28.495 × 4 =
  29. 29.361 × 4 =
  30. 30.521 × 7 =
  31. 31.308 × 8 =
  32. 32.338 × 4 =
  33. 33.958 × 7 =
  34. 34.682 × 9 =
  35. 35.889 × 5 =
  36. 36.614 × 9 =
  37. 37.161 × 3 =
  38. 38.865 × 6 =
  39. 39.976 × 9 =
  40. 40.295 × 6 =

Answer key

  1. 605
  2. 3430
  3. 2568
  4. 6507
  5. 2788
  6. 915
  7. 3267
  8. 5769
  9. 2768
  10. 4368
  11. 2107
  12. 1351
  13. 2886
  14. 1758
  15. 4552
  16. 2360
  17. 1806
  18. 3955
  19. 1216
  20. 1827
  21. 2072
  22. 3208
  23. 2025
  24. 3064
  25. 717
  26. 2195
  27. 724
  28. 1980
  29. 1444
  30. 3647
  31. 2464
  32. 1352
  33. 6706
  34. 6138
  35. 4445
  36. 5526
  37. 483
  38. 5190
  39. 8784
  40. 1770

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