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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 919 · 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. 1.541 × 7 =
  2. 2.721 × 3 =
  3. 3.573 × 5 =
  4. 4.286 × 6 =
  5. 5.112 × 3 =
  6. 6.384 × 8 =
  7. 7.615 × 9 =
  8. 8.341 × 7 =
  9. 9.141 × 5 =
  10. 10.717 × 5 =
  11. 11.815 × 8 =
  12. 12.447 × 5 =
  13. 13.939 × 7 =
  14. 14.656 × 6 =
  15. 15.862 × 3 =
  16. 16.815 × 5 =
  17. 17.421 × 3 =
  18. 18.344 × 5 =
  19. 19.524 × 6 =
  20. 20.145 × 5 =
  21. 21.176 × 6 =
  22. 22.844 × 7 =
  23. 23.791 × 5 =
  24. 24.157 × 9 =
  25. 25.555 × 5 =
  26. 26.265 × 6 =
  27. 27.263 × 3 =
  28. 28.592 × 4 =
  29. 29.613 × 6 =
  30. 30.628 × 8 =
  31. 31.747 × 3 =
  32. 32.147 × 4 =
  33. 33.556 × 3 =
  34. 34.601 × 3 =
  35. 35.976 × 9 =
  36. 36.501 × 3 =
  37. 37.272 × 3 =
  38. 38.681 × 4 =
  39. 39.202 × 5 =
  40. 40.626 × 9 =

Answer key

  1. 3787
  2. 2163
  3. 2865
  4. 1716
  5. 336
  6. 3072
  7. 5535
  8. 2387
  9. 705
  10. 3585
  11. 6520
  12. 2235
  13. 6573
  14. 3936
  15. 2586
  16. 4075
  17. 1263
  18. 1720
  19. 3144
  20. 725
  21. 1056
  22. 5908
  23. 3955
  24. 1413
  25. 2775
  26. 1590
  27. 789
  28. 2368
  29. 3678
  30. 5024
  31. 2241
  32. 588
  33. 1668
  34. 1803
  35. 8784
  36. 1503
  37. 816
  38. 2724
  39. 1010
  40. 5634

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