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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 141 · 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. 1.351 × 8 =
  2. 2.856 × 8 =
  3. 3.145 × 6 =
  4. 4.426 × 3 =
  5. 5.843 × 4 =
  6. 6.542 × 3 =
  7. 7.782 × 6 =
  8. 8.962 × 6 =
  9. 9.291 × 3 =
  10. 10.945 × 9 =
  11. 11.651 × 8 =
  12. 12.701 × 7 =
  13. 13.623 × 3 =
  14. 14.491 × 4 =
  15. 15.452 × 3 =
  16. 16.849 × 4 =
  17. 17.981 × 4 =
  18. 18.431 × 6 =
  19. 19.438 × 8 =
  20. 20.467 × 4 =
  21. 21.436 × 5 =
  22. 22.142 × 3 =
  23. 23.878 × 5 =
  24. 24.805 × 7 =
  25. 25.512 × 9 =
  26. 26.526 × 6 =
  27. 27.301 × 7 =
  28. 28.527 × 7 =
  29. 29.114 × 3 =
  30. 30.305 × 8 =
  31. 31.641 × 4 =
  32. 32.115 × 6 =
  33. 33.821 × 9 =
  34. 34.462 × 3 =
  35. 35.142 × 4 =
  36. 36.202 × 5 =
  37. 37.339 × 5 =
  38. 38.978 × 9 =
  39. 39.218 × 6 =
  40. 40.918 × 5 =

Answer key

  1. 2808
  2. 6848
  3. 870
  4. 1278
  5. 3372
  6. 1626
  7. 4692
  8. 5772
  9. 873
  10. 8505
  11. 5208
  12. 4907
  13. 1869
  14. 1964
  15. 1356
  16. 3396
  17. 3924
  18. 2586
  19. 3504
  20. 1868
  21. 2180
  22. 426
  23. 4390
  24. 5635
  25. 4608
  26. 3156
  27. 2107
  28. 3689
  29. 342
  30. 2440
  31. 2564
  32. 690
  33. 7389
  34. 1386
  35. 568
  36. 1010
  37. 1695
  38. 8802
  39. 1308
  40. 4590

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