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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 747 · 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. 1.301 × 7 =
  2. 2.179 × 5 =
  3. 3.602 × 9 =
  4. 4.161 × 4 =
  5. 5.856 × 8 =
  6. 6.978 × 7 =
  7. 7.781 × 9 =
  8. 8.609 × 8 =
  9. 9.897 × 7 =
  10. 10.825 × 5 =
  11. 11.567 × 4 =
  12. 12.228 × 7 =
  13. 13.876 × 5 =
  14. 14.852 × 6 =
  15. 15.669 × 6 =
  16. 16.221 × 6 =
  17. 17.263 × 9 =
  18. 18.187 × 4 =
  19. 19.516 × 9 =
  20. 20.916 × 9 =
  21. 21.796 × 9 =
  22. 22.183 × 7 =
  23. 23.779 × 9 =
  24. 24.838 × 3 =
  25. 25.334 × 5 =
  26. 26.137 × 9 =
  27. 27.758 × 3 =
  28. 28.311 × 4 =
  29. 29.291 × 3 =
  30. 30.707 × 6 =
  31. 31.974 × 5 =
  32. 32.938 × 6 =
  33. 33.614 × 7 =
  34. 34.872 × 8 =
  35. 35.644 × 3 =
  36. 36.578 × 9 =
  37. 37.622 × 7 =
  38. 38.289 × 3 =
  39. 39.648 × 4 =
  40. 40.728 × 5 =

Answer key

  1. 2107
  2. 895
  3. 5418
  4. 644
  5. 6848
  6. 6846
  7. 7029
  8. 4872
  9. 6279
  10. 4125
  11. 2268
  12. 1596
  13. 4380
  14. 5112
  15. 4014
  16. 1326
  17. 2367
  18. 748
  19. 4644
  20. 8244
  21. 7164
  22. 1281
  23. 7011
  24. 2514
  25. 1670
  26. 1233
  27. 2274
  28. 1244
  29. 873
  30. 4242
  31. 4870
  32. 5628
  33. 4298
  34. 6976
  35. 1932
  36. 5202
  37. 4354
  38. 867
  39. 2592
  40. 3640

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