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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 328 · 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. 1.221 × 4 =
  2. 2.545 × 6 =
  3. 3.739 × 3 =
  4. 4.592 × 8 =
  5. 5.861 × 4 =
  6. 6.158 × 8 =
  7. 7.971 × 3 =
  8. 8.473 × 5 =
  9. 9.238 × 7 =
  10. 10.444 × 6 =
  11. 11.848 × 9 =
  12. 12.711 × 3 =
  13. 13.351 × 4 =
  14. 14.305 × 6 =
  15. 15.934 × 4 =
  16. 16.211 × 4 =
  17. 17.689 × 6 =
  18. 18.728 × 4 =
  19. 19.648 × 3 =
  20. 20.192 × 6 =
  21. 21.304 × 4 =
  22. 22.269 × 5 =
  23. 23.641 × 3 =
  24. 24.181 × 5 =
  25. 25.251 × 4 =
  26. 26.591 × 9 =
  27. 27.686 × 8 =
  28. 28.751 × 4 =
  29. 29.644 × 6 =
  30. 30.956 × 7 =
  31. 31.245 × 6 =
  32. 32.186 × 6 =
  33. 33.876 × 3 =
  34. 34.572 × 4 =
  35. 35.451 × 5 =
  36. 36.282 × 9 =
  37. 37.679 × 9 =
  38. 38.141 × 9 =
  39. 39.881 × 5 =
  40. 40.893 × 4 =

Answer key

  1. 884
  2. 3270
  3. 2217
  4. 4736
  5. 3444
  6. 1264
  7. 2913
  8. 2365
  9. 1666
  10. 2664
  11. 7632
  12. 2133
  13. 1404
  14. 1830
  15. 3736
  16. 844
  17. 4134
  18. 2912
  19. 1944
  20. 1152
  21. 1216
  22. 1345
  23. 1923
  24. 905
  25. 1004
  26. 5319
  27. 5488
  28. 3004
  29. 3864
  30. 6692
  31. 1470
  32. 1116
  33. 2628
  34. 2288
  35. 2255
  36. 2538
  37. 6111
  38. 1269
  39. 4405
  40. 3572

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