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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 822 · 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. 1.775 × 4 =
  2. 2.349 × 6 =
  3. 3.274 × 4 =
  4. 4.891 × 8 =
  5. 5.647 × 4 =
  6. 6.251 × 3 =
  7. 7.447 × 3 =
  8. 8.283 × 3 =
  9. 9.322 × 6 =
  10. 10.122 × 4 =
  11. 11.699 × 5 =
  12. 12.416 × 4 =
  13. 13.874 × 4 =
  14. 14.299 × 5 =
  15. 15.276 × 3 =
  16. 16.979 × 8 =
  17. 17.252 × 6 =
  18. 18.178 × 5 =
  19. 19.119 × 3 =
  20. 20.905 × 6 =
  21. 21.857 × 8 =
  22. 22.156 × 5 =
  23. 23.258 × 9 =
  24. 24.567 × 9 =
  25. 25.293 × 5 =
  26. 26.426 × 4 =
  27. 27.732 × 6 =
  28. 28.922 × 8 =
  29. 29.348 × 3 =
  30. 30.344 × 4 =
  31. 31.861 × 4 =
  32. 32.719 × 4 =
  33. 33.383 × 4 =
  34. 34.848 × 9 =
  35. 35.959 × 9 =
  36. 36.136 × 9 =
  37. 37.249 × 3 =
  38. 38.483 × 3 =
  39. 39.561 × 8 =
  40. 40.786 × 7 =

Answer key

  1. 3100
  2. 2094
  3. 1096
  4. 7128
  5. 2588
  6. 753
  7. 1341
  8. 849
  9. 1932
  10. 488
  11. 3495
  12. 1664
  13. 3496
  14. 1495
  15. 828
  16. 7832
  17. 1512
  18. 890
  19. 357
  20. 5430
  21. 6856
  22. 780
  23. 2322
  24. 5103
  25. 1465
  26. 1704
  27. 4392
  28. 7376
  29. 1044
  30. 1376
  31. 3444
  32. 2876
  33. 1532
  34. 7632
  35. 8631
  36. 1224
  37. 747
  38. 1449
  39. 4488
  40. 5502

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