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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 247 · 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. 1.771 × 4 =
  2. 2.956 × 4 =
  3. 3.511 × 9 =
  4. 4.985 × 6 =
  5. 5.555 × 6 =
  6. 6.391 × 4 =
  7. 7.248 × 7 =
  8. 8.231 × 8 =
  9. 9.561 × 4 =
  10. 10.757 × 5 =
  11. 11.343 × 4 =
  12. 12.901 × 8 =
  13. 13.721 × 8 =
  14. 14.549 × 3 =
  15. 15.784 × 8 =
  16. 16.949 × 8 =
  17. 17.365 × 7 =
  18. 18.378 × 5 =
  19. 19.554 × 4 =
  20. 20.115 × 3 =
  21. 21.482 × 4 =
  22. 22.113 × 5 =
  23. 23.222 × 5 =
  24. 24.415 × 3 =
  25. 25.201 × 7 =
  26. 26.501 × 3 =
  27. 27.373 × 5 =
  28. 28.485 × 6 =
  29. 29.159 × 8 =
  30. 30.498 × 7 =
  31. 31.896 × 9 =
  32. 32.661 × 7 =
  33. 33.281 × 7 =
  34. 34.401 × 8 =
  35. 35.779 × 3 =
  36. 36.351 × 5 =
  37. 37.154 × 8 =
  38. 38.975 × 4 =
  39. 39.708 × 7 =
  40. 40.823 × 3 =

Answer key

  1. 3084
  2. 3824
  3. 4599
  4. 5910
  5. 3330
  6. 1564
  7. 1736
  8. 1848
  9. 2244
  10. 3785
  11. 1372
  12. 7208
  13. 5768
  14. 1647
  15. 6272
  16. 7592
  17. 2555
  18. 1890
  19. 2216
  20. 345
  21. 1928
  22. 565
  23. 1110
  24. 1245
  25. 1407
  26. 1503
  27. 1865
  28. 2910
  29. 1272
  30. 3486
  31. 8064
  32. 4627
  33. 1967
  34. 3208
  35. 2337
  36. 1755
  37. 1232
  38. 3900
  39. 4956
  40. 2469

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