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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 222 · 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. 1.903 × 9 =
  2. 2.552 × 8 =
  3. 3.633 × 3 =
  4. 4.941 × 9 =
  5. 5.887 × 4 =
  6. 6.372 × 5 =
  7. 7.588 × 8 =
  8. 8.559 × 4 =
  9. 9.117 × 9 =
  10. 10.603 × 6 =
  11. 11.112 × 4 =
  12. 12.233 × 8 =
  13. 13.241 × 8 =
  14. 14.621 × 7 =
  15. 15.359 × 4 =
  16. 16.597 × 6 =
  17. 17.877 × 6 =
  18. 18.141 × 9 =
  19. 19.901 × 8 =
  20. 20.501 × 3 =
  21. 21.803 × 5 =
  22. 22.364 × 9 =
  23. 23.712 × 8 =
  24. 24.245 × 5 =
  25. 25.684 × 3 =
  26. 26.655 × 5 =
  27. 27.714 × 7 =
  28. 28.837 × 9 =
  29. 29.819 × 9 =
  30. 30.471 × 7 =
  31. 31.664 × 8 =
  32. 32.176 × 9 =
  33. 33.221 × 9 =
  34. 34.889 × 8 =
  35. 35.601 × 9 =
  36. 36.411 × 9 =
  37. 37.464 × 5 =
  38. 38.888 × 7 =
  39. 39.587 × 8 =
  40. 40.794 × 3 =

Answer key

  1. 8127
  2. 4416
  3. 1899
  4. 8469
  5. 3548
  6. 1860
  7. 4704
  8. 2236
  9. 1053
  10. 3618
  11. 448
  12. 1864
  13. 1928
  14. 4347
  15. 1436
  16. 3582
  17. 5262
  18. 1269
  19. 7208
  20. 1503
  21. 4015
  22. 3276
  23. 5696
  24. 1225
  25. 2052
  26. 3275
  27. 4998
  28. 7533
  29. 7371
  30. 3297
  31. 5312
  32. 1584
  33. 1989
  34. 7112
  35. 5409
  36. 3699
  37. 2320
  38. 6216
  39. 4696
  40. 2382

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