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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 681 · 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. 1.187 × 5 =
  2. 2.529 × 4 =
  3. 3.421 × 4 =
  4. 4.905 × 3 =
  5. 5.728 × 9 =
  6. 6.207 × 4 =
  7. 7.455 × 4 =
  8. 8.129 × 9 =
  9. 9.171 × 3 =
  10. 10.128 × 9 =
  11. 11.175 × 5 =
  12. 12.581 × 9 =
  13. 13.183 × 5 =
  14. 14.498 × 4 =
  15. 15.619 × 4 =
  16. 16.563 × 6 =
  17. 17.879 × 4 =
  18. 18.548 × 9 =
  19. 19.732 × 3 =
  20. 20.901 × 8 =
  21. 21.247 × 4 =
  22. 22.297 × 4 =
  23. 23.813 × 9 =
  24. 24.324 × 4 =
  25. 25.593 × 7 =
  26. 26.291 × 6 =
  27. 27.361 × 7 =
  28. 28.766 × 6 =
  29. 29.476 × 7 =
  30. 30.146 × 7 =
  31. 31.897 × 3 =
  32. 32.804 × 3 =
  33. 33.865 × 7 =
  34. 34.946 × 8 =
  35. 35.451 × 5 =
  36. 36.515 × 7 =
  37. 37.863 × 3 =
  38. 38.161 × 9 =
  39. 39.453 × 3 =
  40. 40.176 × 8 =

Answer key

  1. 935
  2. 2116
  3. 1684
  4. 2715
  5. 6552
  6. 828
  7. 1820
  8. 1161
  9. 513
  10. 1152
  11. 875
  12. 5229
  13. 915
  14. 1992
  15. 2476
  16. 3378
  17. 3516
  18. 4932
  19. 2196
  20. 7208
  21. 988
  22. 1188
  23. 7317
  24. 1296
  25. 4151
  26. 1746
  27. 2527
  28. 4596
  29. 3332
  30. 1022
  31. 2691
  32. 2412
  33. 6055
  34. 7568
  35. 2255
  36. 3605
  37. 2589
  38. 1449
  39. 1359
  40. 1408

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