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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 158 · 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. 1.294 × 7 =
  2. 2.582 × 3 =
  3. 3.598 × 8 =
  4. 4.245 × 4 =
  5. 5.536 × 5 =
  6. 6.284 × 3 =
  7. 7.154 × 5 =
  8. 8.343 × 3 =
  9. 9.591 × 4 =
  10. 10.282 × 9 =
  11. 11.468 × 5 =
  12. 12.383 × 8 =
  13. 13.783 × 4 =
  14. 14.365 × 7 =
  15. 15.778 × 4 =
  16. 16.461 × 7 =
  17. 17.504 × 4 =
  18. 18.669 × 4 =
  19. 19.358 × 6 =
  20. 20.552 × 9 =
  21. 21.862 × 9 =
  22. 22.929 × 5 =
  23. 23.184 × 5 =
  24. 24.147 × 6 =
  25. 25.398 × 6 =
  26. 26.242 × 7 =
  27. 27.727 × 8 =
  28. 28.686 × 3 =
  29. 29.232 × 6 =
  30. 30.978 × 4 =
  31. 31.201 × 3 =
  32. 32.323 × 6 =
  33. 33.127 × 5 =
  34. 34.715 × 8 =
  35. 35.759 × 7 =
  36. 36.542 × 5 =
  37. 37.964 × 3 =
  38. 38.903 × 3 =
  39. 39.743 × 8 =
  40. 40.481 × 3 =

Answer key

  1. 2058
  2. 1746
  3. 4784
  4. 980
  5. 2680
  6. 852
  7. 770
  8. 1029
  9. 2364
  10. 2538
  11. 2340
  12. 3064
  13. 3132
  14. 2555
  15. 3112
  16. 3227
  17. 2016
  18. 2676
  19. 2148
  20. 4968
  21. 7758
  22. 4645
  23. 920
  24. 882
  25. 2388
  26. 1694
  27. 5816
  28. 2058
  29. 1392
  30. 3912
  31. 603
  32. 1938
  33. 635
  34. 5720
  35. 5313
  36. 2710
  37. 2892
  38. 2709
  39. 5944
  40. 1443

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