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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 11 · 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. 1.809 × 7 =
  2. 2.906 × 6 =
  3. 3.819 × 9 =
  4. 4.639 × 6 =
  5. 5.649 × 3 =
  6. 6.573 × 6 =
  7. 7.416 × 5 =
  8. 8.722 × 6 =
  9. 9.282 × 3 =
  10. 10.935 × 8 =
  11. 11.765 × 7 =
  12. 12.141 × 7 =
  13. 13.752 × 9 =
  14. 14.452 × 6 =
  15. 15.917 × 9 =
  16. 16.971 × 7 =
  17. 17.202 × 9 =
  18. 18.238 × 7 =
  19. 19.676 × 4 =
  20. 20.471 × 4 =
  21. 21.684 × 3 =
  22. 22.578 × 7 =
  23. 23.935 × 7 =
  24. 24.703 × 3 =
  25. 25.934 × 8 =
  26. 26.174 × 6 =
  27. 27.115 × 4 =
  28. 28.461 × 5 =
  29. 29.267 × 9 =
  30. 30.655 × 3 =
  31. 31.179 × 3 =
  32. 32.329 × 7 =
  33. 33.187 × 4 =
  34. 34.428 × 5 =
  35. 35.571 × 7 =
  36. 36.439 × 5 =
  37. 37.923 × 4 =
  38. 38.865 × 6 =
  39. 39.146 × 8 =
  40. 40.398 × 9 =

Answer key

  1. 5663
  2. 5436
  3. 7371
  4. 3834
  5. 1947
  6. 3438
  7. 2080
  8. 4332
  9. 846
  10. 7480
  11. 5355
  12. 987
  13. 6768
  14. 2712
  15. 8253
  16. 6797
  17. 1818
  18. 1666
  19. 2704
  20. 1884
  21. 2052
  22. 4046
  23. 6545
  24. 2109
  25. 7472
  26. 1044
  27. 460
  28. 2305
  29. 2403
  30. 1965
  31. 537
  32. 2303
  33. 748
  34. 2140
  35. 3997
  36. 2195
  37. 3692
  38. 5190
  39. 1168
  40. 3582

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