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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 499 · 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. 1.658 × 5 =
  2. 2.603 × 4 =
  3. 3.177 × 9 =
  4. 4.219 × 3 =
  5. 5.292 × 9 =
  6. 6.338 × 8 =
  7. 7.344 × 5 =
  8. 8.425 × 4 =
  9. 9.418 × 4 =
  10. 10.693 × 9 =
  11. 11.718 × 4 =
  12. 12.944 × 6 =
  13. 13.166 × 5 =
  14. 14.971 × 4 =
  15. 15.191 × 8 =
  16. 16.698 × 8 =
  17. 17.958 × 8 =
  18. 18.867 × 4 =
  19. 19.392 × 3 =
  20. 20.318 × 8 =
  21. 21.528 × 5 =
  22. 22.469 × 3 =
  23. 23.341 × 7 =
  24. 24.974 × 5 =
  25. 25.604 × 4 =
  26. 26.669 × 9 =
  27. 27.165 × 3 =
  28. 28.548 × 9 =
  29. 29.487 × 7 =
  30. 30.881 × 4 =
  31. 31.885 × 9 =
  32. 32.271 × 8 =
  33. 33.762 × 9 =
  34. 34.285 × 5 =
  35. 35.349 × 9 =
  36. 36.472 × 9 =
  37. 37.291 × 4 =
  38. 38.141 × 8 =
  39. 39.876 × 5 =
  40. 40.637 × 4 =

Answer key

  1. 3290
  2. 2412
  3. 1593
  4. 657
  5. 2628
  6. 2704
  7. 1720
  8. 1700
  9. 1672
  10. 6237
  11. 2872
  12. 5664
  13. 830
  14. 3884
  15. 1528
  16. 5584
  17. 7664
  18. 3468
  19. 1176
  20. 2544
  21. 2640
  22. 1407
  23. 2387
  24. 4870
  25. 2416
  26. 6021
  27. 495
  28. 4932
  29. 3409
  30. 3524
  31. 7965
  32. 2168
  33. 6858
  34. 1425
  35. 3141
  36. 4248
  37. 1164
  38. 1128
  39. 4380
  40. 2548

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