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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 536 · 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. 1.871 × 7 =
  2. 2.508 × 8 =
  3. 3.915 × 3 =
  4. 4.455 × 4 =
  5. 5.204 × 9 =
  6. 6.759 × 9 =
  7. 7.381 × 5 =
  8. 8.778 × 7 =
  9. 9.383 × 5 =
  10. 10.265 × 7 =
  11. 11.889 × 4 =
  12. 12.444 × 3 =
  13. 13.716 × 9 =
  14. 14.813 × 3 =
  15. 15.989 × 8 =
  16. 16.147 × 7 =
  17. 17.727 × 9 =
  18. 18.183 × 6 =
  19. 19.751 × 8 =
  20. 20.153 × 4 =
  21. 21.689 × 5 =
  22. 22.966 × 5 =
  23. 23.852 × 6 =
  24. 24.264 × 6 =
  25. 25.592 × 7 =
  26. 26.711 × 3 =
  27. 27.347 × 7 =
  28. 28.503 × 3 =
  29. 29.627 × 6 =
  30. 30.856 × 7 =
  31. 31.795 × 9 =
  32. 32.259 × 4 =
  33. 33.204 × 5 =
  34. 34.393 × 8 =
  35. 35.328 × 4 =
  36. 36.757 × 5 =
  37. 37.483 × 3 =
  38. 38.393 × 3 =
  39. 39.731 × 7 =
  40. 40.206 × 4 =

Answer key

  1. 6097
  2. 4064
  3. 2745
  4. 1820
  5. 1836
  6. 6831
  7. 1905
  8. 5446
  9. 1915
  10. 1855
  11. 3556
  12. 1332
  13. 6444
  14. 2439
  15. 7912
  16. 1029
  17. 6543
  18. 1098
  19. 6008
  20. 612
  21. 3445
  22. 4830
  23. 5112
  24. 1584
  25. 4144
  26. 2133
  27. 2429
  28. 1509
  29. 3762
  30. 5992
  31. 7155
  32. 1036
  33. 1020
  34. 3144
  35. 1312
  36. 3785
  37. 1449
  38. 1179
  39. 5117
  40. 824

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