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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 735 · 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. 1.914 × 4 =
  2. 2.115 × 7 =
  3. 3.939 × 6 =
  4. 4.479 × 8 =
  5. 5.689 × 9 =
  6. 6.151 × 5 =
  7. 7.194 × 9 =
  8. 8.162 × 6 =
  9. 9.752 × 8 =
  10. 10.478 × 6 =
  11. 11.305 × 3 =
  12. 12.751 × 4 =
  13. 13.545 × 9 =
  14. 14.703 × 8 =
  15. 15.124 × 7 =
  16. 16.835 × 7 =
  17. 17.256 × 9 =
  18. 18.209 × 7 =
  19. 19.262 × 8 =
  20. 20.362 × 6 =
  21. 21.617 × 5 =
  22. 22.361 × 9 =
  23. 23.284 × 4 =
  24. 24.231 × 9 =
  25. 25.323 × 6 =
  26. 26.283 × 9 =
  27. 27.611 × 3 =
  28. 28.671 × 5 =
  29. 29.285 × 7 =
  30. 30.805 × 7 =
  31. 31.653 × 4 =
  32. 32.458 × 7 =
  33. 33.826 × 4 =
  34. 34.149 × 4 =
  35. 35.707 × 7 =
  36. 36.566 × 6 =
  37. 37.271 × 4 =
  38. 38.365 × 8 =
  39. 39.518 × 4 =
  40. 40.559 × 7 =

Answer key

  1. 3656
  2. 805
  3. 5634
  4. 3832
  5. 6201
  6. 755
  7. 1746
  8. 972
  9. 6016
  10. 2868
  11. 915
  12. 3004
  13. 4905
  14. 5624
  15. 868
  16. 5845
  17. 2304
  18. 1463
  19. 2096
  20. 2172
  21. 3085
  22. 3249
  23. 1136
  24. 2079
  25. 1938
  26. 2547
  27. 1833
  28. 3355
  29. 1995
  30. 5635
  31. 2612
  32. 3206
  33. 3304
  34. 596
  35. 4949
  36. 3396
  37. 1084
  38. 2920
  39. 2072
  40. 3913

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