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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 340 · 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. 1.206 × 4 =
  2. 2.205 × 5 =
  3. 3.411 × 5 =
  4. 4.905 × 8 =
  5. 5.416 × 4 =
  6. 6.431 × 9 =
  7. 7.888 × 9 =
  8. 8.515 × 9 =
  9. 9.677 × 6 =
  10. 10.359 × 8 =
  11. 11.352 × 8 =
  12. 12.774 × 5 =
  13. 13.607 × 4 =
  14. 14.157 × 8 =
  15. 15.602 × 8 =
  16. 16.936 × 6 =
  17. 17.234 × 8 =
  18. 18.401 × 3 =
  19. 19.144 × 9 =
  20. 20.225 × 3 =
  21. 21.301 × 7 =
  22. 22.395 × 4 =
  23. 23.734 × 4 =
  24. 24.724 × 4 =
  25. 25.317 × 5 =
  26. 26.315 × 4 =
  27. 27.295 × 8 =
  28. 28.489 × 5 =
  29. 29.482 × 5 =
  30. 30.373 × 5 =
  31. 31.284 × 9 =
  32. 32.683 × 3 =
  33. 33.237 × 4 =
  34. 34.337 × 5 =
  35. 35.763 × 9 =
  36. 36.744 × 6 =
  37. 37.711 × 5 =
  38. 38.755 × 4 =
  39. 39.526 × 9 =
  40. 40.539 × 8 =

Answer key

  1. 824
  2. 1025
  3. 2055
  4. 7240
  5. 1664
  6. 3879
  7. 7992
  8. 4635
  9. 4062
  10. 2872
  11. 2816
  12. 3870
  13. 2428
  14. 1256
  15. 4816
  16. 5616
  17. 1872
  18. 1203
  19. 1296
  20. 675
  21. 2107
  22. 1580
  23. 2936
  24. 2896
  25. 1585
  26. 1260
  27. 2360
  28. 2445
  29. 2410
  30. 1865
  31. 2556
  32. 2049
  33. 948
  34. 1685
  35. 6867
  36. 4464
  37. 3555
  38. 3020
  39. 4734
  40. 4312

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