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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 238 · 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. 1.946 × 7 =
  2. 2.788 × 4 =
  3. 3.252 × 5 =
  4. 4.783 × 5 =
  5. 5.867 × 8 =
  6. 6.471 × 6 =
  7. 7.205 × 5 =
  8. 8.851 × 6 =
  9. 9.864 × 7 =
  10. 10.246 × 9 =
  11. 11.979 × 4 =
  12. 12.648 × 6 =
  13. 13.374 × 4 =
  14. 14.226 × 4 =
  15. 15.309 × 7 =
  16. 16.725 × 3 =
  17. 17.251 × 4 =
  18. 18.606 × 3 =
  19. 19.243 × 3 =
  20. 20.859 × 3 =
  21. 21.217 × 7 =
  22. 22.563 × 5 =
  23. 23.206 × 8 =
  24. 24.281 × 4 =
  25. 25.476 × 5 =
  26. 26.766 × 4 =
  27. 27.244 × 4 =
  28. 28.502 × 4 =
  29. 29.824 × 8 =
  30. 30.884 × 7 =
  31. 31.752 × 7 =
  32. 32.689 × 9 =
  33. 33.771 × 6 =
  34. 34.366 × 8 =
  35. 35.979 × 9 =
  36. 36.413 × 3 =
  37. 37.981 × 4 =
  38. 38.937 × 6 =
  39. 39.164 × 4 =
  40. 40.463 × 4 =

Answer key

  1. 6622
  2. 3152
  3. 1260
  4. 3915
  5. 6936
  6. 2826
  7. 1025
  8. 5106
  9. 6048
  10. 2214
  11. 3916
  12. 3888
  13. 1496
  14. 904
  15. 2163
  16. 2175
  17. 1004
  18. 1818
  19. 729
  20. 2577
  21. 1519
  22. 2815
  23. 1648
  24. 1124
  25. 2380
  26. 3064
  27. 976
  28. 2008
  29. 6592
  30. 6188
  31. 5264
  32. 6201
  33. 4626
  34. 2928
  35. 8811
  36. 1239
  37. 3924
  38. 5622
  39. 656
  40. 1852

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