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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 868 · 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. 1.228 × 4 =
  2. 2.225 × 4 =
  3. 3.266 × 7 =
  4. 4.167 × 5 =
  5. 5.618 × 4 =
  6. 6.675 × 3 =
  7. 7.318 × 8 =
  8. 8.809 × 6 =
  9. 9.397 × 6 =
  10. 10.231 × 7 =
  11. 11.769 × 9 =
  12. 12.159 × 9 =
  13. 13.821 × 9 =
  14. 14.346 × 3 =
  15. 15.508 × 3 =
  16. 16.573 × 3 =
  17. 17.598 × 9 =
  18. 18.954 × 6 =
  19. 19.803 × 9 =
  20. 20.677 × 6 =
  21. 21.419 × 4 =
  22. 22.253 × 4 =
  23. 23.557 × 8 =
  24. 24.858 × 5 =
  25. 25.201 × 4 =
  26. 26.702 × 7 =
  27. 27.738 × 3 =
  28. 28.317 × 6 =
  29. 29.365 × 6 =
  30. 30.597 × 8 =
  31. 31.787 × 9 =
  32. 32.361 × 7 =
  33. 33.369 × 9 =
  34. 34.965 × 6 =
  35. 35.537 × 8 =
  36. 36.458 × 6 =
  37. 37.815 × 6 =
  38. 38.386 × 7 =
  39. 39.767 × 6 =
  40. 40.776 × 4 =

Answer key

  1. 912
  2. 900
  3. 1862
  4. 835
  5. 2472
  6. 2025
  7. 2544
  8. 4854
  9. 2382
  10. 1617
  11. 6921
  12. 1431
  13. 7389
  14. 1038
  15. 1524
  16. 1719
  17. 5382
  18. 5724
  19. 7227
  20. 4062
  21. 1676
  22. 1012
  23. 4456
  24. 4290
  25. 804
  26. 4914
  27. 2214
  28. 1902
  29. 2190
  30. 4776
  31. 7083
  32. 2527
  33. 3321
  34. 5790
  35. 4296
  36. 2748
  37. 4890
  38. 2702
  39. 4602
  40. 3104

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