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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 76 · 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. 1.916 × 5 =
  2. 2.801 × 3 =
  3. 3.494 × 4 =
  4. 4.411 × 5 =
  5. 5.224 × 6 =
  6. 6.224 × 4 =
  7. 7.891 × 4 =
  8. 8.363 × 4 =
  9. 9.359 × 6 =
  10. 10.589 × 6 =
  11. 11.186 × 7 =
  12. 12.606 × 3 =
  13. 13.376 × 7 =
  14. 14.776 × 8 =
  15. 15.837 × 7 =
  16. 16.547 × 6 =
  17. 17.831 × 5 =
  18. 18.736 × 7 =
  19. 19.308 × 3 =
  20. 20.841 × 4 =
  21. 21.618 × 7 =
  22. 22.414 × 8 =
  23. 23.774 × 8 =
  24. 24.523 × 7 =
  25. 25.395 × 5 =
  26. 26.919 × 4 =
  27. 27.181 × 7 =
  28. 28.271 × 9 =
  29. 29.289 × 4 =
  30. 30.418 × 8 =
  31. 31.761 × 6 =
  32. 32.171 × 3 =
  33. 33.285 × 3 =
  34. 34.367 × 8 =
  35. 35.281 × 3 =
  36. 36.709 × 3 =
  37. 37.248 × 9 =
  38. 38.823 × 9 =
  39. 39.354 × 7 =
  40. 40.201 × 4 =

Answer key

  1. 4580
  2. 2403
  3. 1976
  4. 2055
  5. 1344
  6. 896
  7. 3564
  8. 1452
  9. 2154
  10. 3534
  11. 1302
  12. 1818
  13. 2632
  14. 6208
  15. 5859
  16. 3282
  17. 4155
  18. 5152
  19. 924
  20. 3364
  21. 4326
  22. 3312
  23. 6192
  24. 3661
  25. 1975
  26. 3676
  27. 1267
  28. 2439
  29. 1156
  30. 3344
  31. 4566
  32. 513
  33. 855
  34. 2936
  35. 843
  36. 2127
  37. 2232
  38. 7407
  39. 2478
  40. 804

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