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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 562 · 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. 1.857 × 3 =
  2. 2.747 × 3 =
  3. 3.881 × 3 =
  4. 4.334 × 4 =
  5. 5.541 × 9 =
  6. 6.248 × 9 =
  7. 7.921 × 4 =
  8. 8.275 × 8 =
  9. 9.231 × 5 =
  10. 10.187 × 8 =
  11. 11.271 × 3 =
  12. 12.628 × 8 =
  13. 13.561 × 8 =
  14. 14.301 × 5 =
  15. 15.652 × 3 =
  16. 16.835 × 4 =
  17. 17.527 × 8 =
  18. 18.795 × 8 =
  19. 19.217 × 8 =
  20. 20.787 × 8 =
  21. 21.967 × 9 =
  22. 22.765 × 8 =
  23. 23.737 × 5 =
  24. 24.201 × 9 =
  25. 25.209 × 3 =
  26. 26.327 × 3 =
  27. 27.249 × 3 =
  28. 28.666 × 9 =
  29. 29.772 × 9 =
  30. 30.987 × 4 =
  31. 31.583 × 4 =
  32. 32.892 × 9 =
  33. 33.806 × 9 =
  34. 34.612 × 8 =
  35. 35.336 × 8 =
  36. 36.858 × 7 =
  37. 37.429 × 3 =
  38. 38.621 × 6 =
  39. 39.611 × 3 =
  40. 40.697 × 8 =

Answer key

  1. 2571
  2. 2241
  3. 2643
  4. 1336
  5. 4869
  6. 2232
  7. 3684
  8. 2200
  9. 1155
  10. 1496
  11. 813
  12. 5024
  13. 4488
  14. 1505
  15. 1956
  16. 3340
  17. 4216
  18. 6360
  19. 1736
  20. 6296
  21. 8703
  22. 6120
  23. 3685
  24. 1809
  25. 627
  26. 981
  27. 747
  28. 5994
  29. 6948
  30. 3948
  31. 2332
  32. 8028
  33. 7254
  34. 4896
  35. 2688
  36. 6006
  37. 1287
  38. 3726
  39. 1833
  40. 5576

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