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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 516 · 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. 1.121 × 4 =
  2. 2.591 × 5 =
  3. 3.459 × 4 =
  4. 4.826 × 5 =
  5. 5.378 × 6 =
  6. 6.301 × 6 =
  7. 7.268 × 3 =
  8. 8.822 × 7 =
  9. 9.228 × 4 =
  10. 10.355 × 7 =
  11. 11.786 × 5 =
  12. 12.959 × 3 =
  13. 13.132 × 3 =
  14. 14.941 × 5 =
  15. 15.211 × 3 =
  16. 16.153 × 5 =
  17. 17.773 × 8 =
  18. 18.847 × 3 =
  19. 19.542 × 9 =
  20. 20.376 × 3 =
  21. 21.607 × 3 =
  22. 22.727 × 9 =
  23. 23.429 × 5 =
  24. 24.562 × 3 =
  25. 25.306 × 6 =
  26. 26.778 × 8 =
  27. 27.307 × 4 =
  28. 28.121 × 3 =
  29. 29.755 × 8 =
  30. 30.589 × 8 =
  31. 31.205 × 5 =
  32. 32.907 × 4 =
  33. 33.632 × 3 =
  34. 34.187 × 3 =
  35. 35.381 × 9 =
  36. 36.655 × 7 =
  37. 37.821 × 7 =
  38. 38.382 × 5 =
  39. 39.941 × 9 =
  40. 40.485 × 4 =

Answer key

  1. 484
  2. 2955
  3. 1836
  4. 4130
  5. 2268
  6. 1806
  7. 804
  8. 5754
  9. 912
  10. 2485
  11. 3930
  12. 2877
  13. 396
  14. 4705
  15. 633
  16. 765
  17. 6184
  18. 2541
  19. 4878
  20. 1128
  21. 1821
  22. 6543
  23. 2145
  24. 1686
  25. 1836
  26. 6224
  27. 1228
  28. 363
  29. 6040
  30. 4712
  31. 1025
  32. 3628
  33. 1896
  34. 561
  35. 3429
  36. 4585
  37. 5747
  38. 1910
  39. 8469
  40. 1940

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