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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 809 · 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. 1.179 × 5 =
  2. 2.892 × 4 =
  3. 3.404 × 9 =
  4. 4.923 × 7 =
  5. 5.207 × 4 =
  6. 6.389 × 9 =
  7. 7.131 × 9 =
  8. 8.711 × 7 =
  9. 9.519 × 9 =
  10. 10.663 × 3 =
  11. 11.381 × 8 =
  12. 12.128 × 7 =
  13. 13.181 × 7 =
  14. 14.987 × 9 =
  15. 15.822 × 3 =
  16. 16.341 × 5 =
  17. 17.577 × 4 =
  18. 18.377 × 7 =
  19. 19.829 × 5 =
  20. 20.511 × 3 =
  21. 21.501 × 9 =
  22. 22.404 × 7 =
  23. 23.447 × 3 =
  24. 24.233 × 9 =
  25. 25.511 × 6 =
  26. 26.602 × 3 =
  27. 27.297 × 8 =
  28. 28.904 × 8 =
  29. 29.717 × 3 =
  30. 30.263 × 9 =
  31. 31.166 × 9 =
  32. 32.441 × 4 =
  33. 33.737 × 9 =
  34. 34.919 × 5 =
  35. 35.522 × 6 =
  36. 36.754 × 6 =
  37. 37.682 × 6 =
  38. 38.791 × 9 =
  39. 39.606 × 4 =
  40. 40.284 × 3 =

Answer key

  1. 895
  2. 3568
  3. 3636
  4. 6461
  5. 828
  6. 3501
  7. 1179
  8. 4977
  9. 4671
  10. 1989
  11. 3048
  12. 896
  13. 1267
  14. 8883
  15. 2466
  16. 1705
  17. 2308
  18. 2639
  19. 4145
  20. 1533
  21. 4509
  22. 2828
  23. 1341
  24. 2097
  25. 3066
  26. 1806
  27. 2376
  28. 7232
  29. 2151
  30. 2367
  31. 1494
  32. 1764
  33. 6633
  34. 4595
  35. 3132
  36. 4524
  37. 4092
  38. 7119
  39. 2424
  40. 852

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