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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 335 · 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. 1.856 × 4 =
  2. 2.581 × 6 =
  3. 3.532 × 3 =
  4. 4.942 × 6 =
  5. 5.164 × 8 =
  6. 6.399 × 4 =
  7. 7.525 × 9 =
  8. 8.453 × 3 =
  9. 9.341 × 3 =
  10. 10.241 × 3 =
  11. 11.207 × 8 =
  12. 12.331 × 9 =
  13. 13.752 × 4 =
  14. 14.967 × 3 =
  15. 15.193 × 4 =
  16. 16.368 × 3 =
  17. 17.428 × 4 =
  18. 18.857 × 4 =
  19. 19.811 × 7 =
  20. 20.638 × 3 =
  21. 21.159 × 5 =
  22. 22.941 × 9 =
  23. 23.142 × 4 =
  24. 24.394 × 3 =
  25. 25.213 × 4 =
  26. 26.468 × 4 =
  27. 27.751 × 4 =
  28. 28.433 × 3 =
  29. 29.591 × 5 =
  30. 30.113 × 7 =
  31. 31.244 × 3 =
  32. 32.774 × 9 =
  33. 33.189 × 8 =
  34. 34.981 × 7 =
  35. 35.292 × 7 =
  36. 36.951 × 4 =
  37. 37.647 × 7 =
  38. 38.802 × 6 =
  39. 39.544 × 5 =
  40. 40.735 × 7 =

Answer key

  1. 3424
  2. 3486
  3. 1596
  4. 5652
  5. 1312
  6. 1596
  7. 4725
  8. 1359
  9. 1023
  10. 723
  11. 1656
  12. 2979
  13. 3008
  14. 2901
  15. 772
  16. 1104
  17. 1712
  18. 3428
  19. 5677
  20. 1914
  21. 795
  22. 8469
  23. 568
  24. 1182
  25. 852
  26. 1872
  27. 3004
  28. 1299
  29. 2955
  30. 791
  31. 732
  32. 6966
  33. 1512
  34. 6867
  35. 2044
  36. 3804
  37. 4529
  38. 4812
  39. 2720
  40. 5145

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