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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 679 · 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. 1.147 × 7 =
  2. 2.334 × 6 =
  3. 3.821 × 3 =
  4. 4.683 × 4 =
  5. 5.461 × 7 =
  6. 6.613 × 3 =
  7. 7.928 × 3 =
  8. 8.658 × 8 =
  9. 9.219 × 3 =
  10. 10.331 × 6 =
  11. 11.496 × 4 =
  12. 12.238 × 9 =
  13. 13.361 × 8 =
  14. 14.838 × 5 =
  15. 15.971 × 5 =
  16. 16.573 × 9 =
  17. 17.877 × 5 =
  18. 18.199 × 4 =
  19. 19.865 × 5 =
  20. 20.405 × 8 =
  21. 21.511 × 3 =
  22. 22.379 × 7 =
  23. 23.301 × 7 =
  24. 24.183 × 5 =
  25. 25.328 × 7 =
  26. 26.882 × 7 =
  27. 27.734 × 8 =
  28. 28.447 × 4 =
  29. 29.863 × 9 =
  30. 30.182 × 7 =
  31. 31.634 × 3 =
  32. 32.668 × 5 =
  33. 33.211 × 3 =
  34. 34.701 × 4 =
  35. 35.814 × 7 =
  36. 36.117 × 8 =
  37. 37.821 × 6 =
  38. 38.943 × 4 =
  39. 39.981 × 9 =
  40. 40.533 × 8 =

Answer key

  1. 1029
  2. 2004
  3. 2463
  4. 2732
  5. 3227
  6. 1839
  7. 2784
  8. 5264
  9. 657
  10. 1986
  11. 1984
  12. 2142
  13. 2888
  14. 4190
  15. 4855
  16. 5157
  17. 4385
  18. 796
  19. 4325
  20. 3240
  21. 1533
  22. 2653
  23. 2107
  24. 915
  25. 2296
  26. 6174
  27. 5872
  28. 1788
  29. 7767
  30. 1274
  31. 1902
  32. 3340
  33. 633
  34. 2804
  35. 5698
  36. 936
  37. 4926
  38. 3772
  39. 8829
  40. 4264

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