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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 955 · 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. 1.707 × 3 =
  2. 2.208 × 4 =
  3. 3.385 × 4 =
  4. 4.693 × 7 =
  5. 5.868 × 5 =
  6. 6.671 × 6 =
  7. 7.628 × 8 =
  8. 8.975 × 6 =
  9. 9.679 × 6 =
  10. 10.418 × 5 =
  11. 11.673 × 8 =
  12. 12.888 × 4 =
  13. 13.351 × 8 =
  14. 14.437 × 7 =
  15. 15.114 × 8 =
  16. 16.361 × 8 =
  17. 17.635 × 3 =
  18. 18.561 × 8 =
  19. 19.378 × 4 =
  20. 20.861 × 8 =
  21. 21.504 × 7 =
  22. 22.129 × 6 =
  23. 23.788 × 6 =
  24. 24.982 × 5 =
  25. 25.119 × 3 =
  26. 26.549 × 5 =
  27. 27.641 × 6 =
  28. 28.167 × 5 =
  29. 29.861 × 6 =
  30. 30.699 × 6 =
  31. 31.688 × 9 =
  32. 32.719 × 4 =
  33. 33.285 × 8 =
  34. 34.121 × 8 =
  35. 35.471 × 9 =
  36. 36.651 × 6 =
  37. 37.497 × 7 =
  38. 38.541 × 5 =
  39. 39.523 × 5 =
  40. 40.688 × 3 =

Answer key

  1. 2121
  2. 832
  3. 1540
  4. 4851
  5. 4340
  6. 4026
  7. 5024
  8. 5850
  9. 4074
  10. 2090
  11. 5384
  12. 3552
  13. 2808
  14. 3059
  15. 912
  16. 2888
  17. 1905
  18. 4488
  19. 1512
  20. 6888
  21. 3528
  22. 774
  23. 4728
  24. 4910
  25. 357
  26. 2745
  27. 3846
  28. 835
  29. 5166
  30. 4194
  31. 6192
  32. 2876
  33. 2280
  34. 968
  35. 4239
  36. 3906
  37. 3479
  38. 2705
  39. 2615
  40. 2064

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