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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 732 · 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. 1.215 × 7 =
  2. 2.185 × 6 =
  3. 3.243 × 6 =
  4. 4.484 × 7 =
  5. 5.462 × 6 =
  6. 6.381 × 5 =
  7. 7.331 × 3 =
  8. 8.781 × 9 =
  9. 9.596 × 3 =
  10. 10.384 × 5 =
  11. 11.236 × 3 =
  12. 12.147 × 9 =
  13. 13.221 × 4 =
  14. 14.452 × 7 =
  15. 15.357 × 4 =
  16. 16.306 × 7 =
  17. 17.428 × 4 =
  18. 18.791 × 9 =
  19. 19.183 × 6 =
  20. 20.339 × 4 =
  21. 21.691 × 3 =
  22. 22.886 × 5 =
  23. 23.114 × 4 =
  24. 24.637 × 9 =
  25. 25.831 × 7 =
  26. 26.799 × 6 =
  27. 27.935 × 3 =
  28. 28.243 × 5 =
  29. 29.509 × 5 =
  30. 30.713 × 9 =
  31. 31.676 × 6 =
  32. 32.414 × 4 =
  33. 33.539 × 9 =
  34. 34.206 × 3 =
  35. 35.871 × 3 =
  36. 36.183 × 3 =
  37. 37.391 × 3 =
  38. 38.714 × 4 =
  39. 39.598 × 9 =
  40. 40.938 × 7 =

Answer key

  1. 1505
  2. 1110
  3. 1458
  4. 3388
  5. 2772
  6. 1905
  7. 993
  8. 7029
  9. 1788
  10. 1920
  11. 708
  12. 1323
  13. 884
  14. 3164
  15. 1428
  16. 2142
  17. 1712
  18. 7119
  19. 1098
  20. 1356
  21. 2073
  22. 4430
  23. 456
  24. 5733
  25. 5817
  26. 4794
  27. 2805
  28. 1215
  29. 2545
  30. 6417
  31. 4056
  32. 1656
  33. 4851
  34. 618
  35. 2613
  36. 549
  37. 1173
  38. 2856
  39. 5382
  40. 6566

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