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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 779 · 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. 1.334 × 9 =
  2. 2.708 × 5 =
  3. 3.281 × 8 =
  4. 4.817 × 9 =
  5. 5.332 × 3 =
  6. 6.391 × 7 =
  7. 7.373 × 8 =
  8. 8.925 × 5 =
  9. 9.148 × 5 =
  10. 10.926 × 6 =
  11. 11.383 × 5 =
  12. 12.541 × 3 =
  13. 13.177 × 3 =
  14. 14.757 × 5 =
  15. 15.981 × 7 =
  16. 16.984 × 9 =
  17. 17.458 × 5 =
  18. 18.713 × 4 =
  19. 19.197 × 7 =
  20. 20.212 × 6 =
  21. 21.408 × 9 =
  22. 22.238 × 3 =
  23. 23.642 × 8 =
  24. 24.735 × 9 =
  25. 25.526 × 3 =
  26. 26.729 × 3 =
  27. 27.367 × 4 =
  28. 28.353 × 6 =
  29. 29.546 × 6 =
  30. 30.195 × 7 =
  31. 31.201 × 3 =
  32. 32.968 × 9 =
  33. 33.821 × 8 =
  34. 34.911 × 6 =
  35. 35.593 × 9 =
  36. 36.801 × 6 =
  37. 37.167 × 5 =
  38. 38.699 × 7 =
  39. 39.117 × 9 =
  40. 40.162 × 9 =

Answer key

  1. 3006
  2. 3540
  3. 2248
  4. 7353
  5. 996
  6. 2737
  7. 2984
  8. 4625
  9. 740
  10. 5556
  11. 1915
  12. 1623
  13. 531
  14. 3785
  15. 6867
  16. 8856
  17. 2290
  18. 2852
  19. 1379
  20. 1272
  21. 3672
  22. 714
  23. 5136
  24. 6615
  25. 1578
  26. 2187
  27. 1468
  28. 2118
  29. 3276
  30. 1365
  31. 603
  32. 8712
  33. 6568
  34. 5466
  35. 5337
  36. 4806
  37. 835
  38. 4893
  39. 1053
  40. 1458

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