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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 761 · 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. 1.634 × 5 =
  2. 2.931 × 5 =
  3. 3.905 × 7 =
  4. 4.486 × 4 =
  5. 5.291 × 3 =
  6. 6.413 × 7 =
  7. 7.869 × 8 =
  8. 8.471 × 6 =
  9. 9.609 × 6 =
  10. 10.925 × 4 =
  11. 11.935 × 5 =
  12. 12.171 × 7 =
  13. 13.151 × 4 =
  14. 14.328 × 7 =
  15. 15.591 × 8 =
  16. 16.901 × 5 =
  17. 17.809 × 3 =
  18. 18.409 × 6 =
  19. 19.647 × 9 =
  20. 20.981 × 5 =
  21. 21.203 × 7 =
  22. 22.887 × 4 =
  23. 23.201 × 7 =
  24. 24.917 × 3 =
  25. 25.851 × 6 =
  26. 26.188 × 9 =
  27. 27.949 × 9 =
  28. 28.608 × 3 =
  29. 29.316 × 4 =
  30. 30.279 × 5 =
  31. 31.342 × 4 =
  32. 32.312 × 4 =
  33. 33.661 × 9 =
  34. 34.957 × 9 =
  35. 35.243 × 9 =
  36. 36.576 × 4 =
  37. 37.856 × 6 =
  38. 38.719 × 8 =
  39. 39.961 × 9 =
  40. 40.138 × 5 =

Answer key

  1. 3170
  2. 4655
  3. 6335
  4. 1944
  5. 873
  6. 2891
  7. 6952
  8. 2826
  9. 3654
  10. 3700
  11. 4675
  12. 1197
  13. 604
  14. 2296
  15. 4728
  16. 4505
  17. 2427
  18. 2454
  19. 5823
  20. 4905
  21. 1421
  22. 3548
  23. 1407
  24. 2751
  25. 5106
  26. 1692
  27. 8541
  28. 1824
  29. 1264
  30. 1395
  31. 1368
  32. 1248
  33. 5949
  34. 8613
  35. 2187
  36. 2304
  37. 5136
  38. 5752
  39. 8649
  40. 690

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