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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 845 · 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. 1.821 × 5 =
  2. 2.825 × 6 =
  3. 3.495 × 5 =
  4. 4.268 × 7 =
  5. 5.701 × 3 =
  6. 6.689 × 4 =
  7. 7.836 × 5 =
  8. 8.268 × 3 =
  9. 9.782 × 3 =
  10. 10.604 × 8 =
  11. 11.834 × 9 =
  12. 12.958 × 8 =
  13. 13.643 × 8 =
  14. 14.941 × 8 =
  15. 15.151 × 8 =
  16. 16.781 × 6 =
  17. 17.569 × 5 =
  18. 18.126 × 8 =
  19. 19.594 × 3 =
  20. 20.896 × 4 =
  21. 21.221 × 5 =
  22. 22.527 × 8 =
  23. 23.351 × 7 =
  24. 24.253 × 3 =
  25. 25.338 × 4 =
  26. 26.377 × 9 =
  27. 27.791 × 7 =
  28. 28.962 × 9 =
  29. 29.629 × 6 =
  30. 30.505 × 9 =
  31. 31.462 × 8 =
  32. 32.114 × 8 =
  33. 33.366 × 9 =
  34. 34.644 × 8 =
  35. 35.685 × 4 =
  36. 36.112 × 7 =
  37. 37.369 × 6 =
  38. 38.189 × 7 =
  39. 39.474 × 7 =
  40. 40.378 × 3 =

Answer key

  1. 4105
  2. 4950
  3. 2475
  4. 1876
  5. 2103
  6. 2756
  7. 4180
  8. 804
  9. 2346
  10. 4832
  11. 7506
  12. 7664
  13. 5144
  14. 7528
  15. 1208
  16. 4686
  17. 2845
  18. 1008
  19. 1782
  20. 3584
  21. 1105
  22. 4216
  23. 2457
  24. 759
  25. 1352
  26. 3393
  27. 5537
  28. 8658
  29. 3774
  30. 4545
  31. 3696
  32. 912
  33. 3294
  34. 5152
  35. 2740
  36. 784
  37. 2214
  38. 1323
  39. 3318
  40. 1134

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