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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 825 · 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. 1.395 × 3 =
  2. 2.373 × 3 =
  3. 3.567 × 4 =
  4. 4.171 × 9 =
  5. 5.839 × 9 =
  6. 6.938 × 3 =
  7. 7.271 × 3 =
  8. 8.751 × 9 =
  9. 9.553 × 5 =
  10. 10.149 × 5 =
  11. 11.196 × 5 =
  12. 12.465 × 4 =
  13. 13.435 × 7 =
  14. 14.781 × 3 =
  15. 15.433 × 9 =
  16. 16.688 × 3 =
  17. 17.199 × 9 =
  18. 18.902 × 9 =
  19. 19.232 × 9 =
  20. 20.635 × 3 =
  21. 21.365 × 4 =
  22. 22.421 × 3 =
  23. 23.207 × 7 =
  24. 24.856 × 5 =
  25. 25.201 × 7 =
  26. 26.321 × 8 =
  27. 27.542 × 9 =
  28. 28.941 × 9 =
  29. 29.185 × 9 =
  30. 30.698 × 4 =
  31. 31.364 × 3 =
  32. 32.647 × 6 =
  33. 33.121 × 7 =
  34. 34.606 × 8 =
  35. 35.772 × 9 =
  36. 36.261 × 8 =
  37. 37.633 × 3 =
  38. 38.327 × 9 =
  39. 39.314 × 9 =
  40. 40.552 × 7 =

Answer key

  1. 1185
  2. 1119
  3. 2268
  4. 1539
  5. 7551
  6. 2814
  7. 813
  8. 6759
  9. 2765
  10. 745
  11. 980
  12. 1860
  13. 3045
  14. 2343
  15. 3897
  16. 2064
  17. 1791
  18. 8118
  19. 2088
  20. 1905
  21. 1460
  22. 1263
  23. 1449
  24. 4280
  25. 1407
  26. 2568
  27. 4878
  28. 8469
  29. 1665
  30. 2792
  31. 1092
  32. 3882
  33. 847
  34. 4848
  35. 6948
  36. 2088
  37. 1899
  38. 2943
  39. 2826
  40. 3864

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