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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 710 · 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. 1.185 × 9 =
  2. 2.571 × 5 =
  3. 3.279 × 8 =
  4. 4.356 × 7 =
  5. 5.669 × 3 =
  6. 6.477 × 6 =
  7. 7.421 × 4 =
  8. 8.572 × 4 =
  9. 9.204 × 8 =
  10. 10.387 × 9 =
  11. 11.294 × 4 =
  12. 12.351 × 4 =
  13. 13.833 × 5 =
  14. 14.851 × 9 =
  15. 15.875 × 9 =
  16. 16.951 × 4 =
  17. 17.314 × 3 =
  18. 18.739 × 3 =
  19. 19.188 × 7 =
  20. 20.967 × 4 =
  21. 21.868 × 8 =
  22. 22.376 × 3 =
  23. 23.191 × 7 =
  24. 24.874 × 6 =
  25. 25.775 × 7 =
  26. 26.962 × 7 =
  27. 27.123 × 8 =
  28. 28.662 × 9 =
  29. 29.855 × 8 =
  30. 30.683 × 6 =
  31. 31.573 × 6 =
  32. 32.466 × 8 =
  33. 33.952 × 4 =
  34. 34.865 × 9 =
  35. 35.827 × 3 =
  36. 36.278 × 6 =
  37. 37.256 × 4 =
  38. 38.115 × 3 =
  39. 39.255 × 7 =
  40. 40.151 × 5 =

Answer key

  1. 1665
  2. 2855
  3. 2232
  4. 2492
  5. 2007
  6. 2862
  7. 1684
  8. 2288
  9. 1632
  10. 3483
  11. 1176
  12. 1404
  13. 4165
  14. 7659
  15. 7875
  16. 3804
  17. 942
  18. 2217
  19. 1316
  20. 3868
  21. 6944
  22. 1128
  23. 1337
  24. 5244
  25. 5425
  26. 6734
  27. 984
  28. 5958
  29. 6840
  30. 4098
  31. 3438
  32. 3728
  33. 3808
  34. 7785
  35. 2481
  36. 1668
  37. 1024
  38. 345
  39. 1785
  40. 755

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