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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 429 · 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. 1.651 × 9 =
  2. 2.168 × 6 =
  3. 3.395 × 8 =
  4. 4.336 × 9 =
  5. 5.729 × 8 =
  6. 6.488 × 8 =
  7. 7.131 × 3 =
  8. 8.235 × 6 =
  9. 9.201 × 3 =
  10. 10.361 × 7 =
  11. 11.268 × 4 =
  12. 12.439 × 9 =
  13. 13.321 × 9 =
  14. 14.862 × 8 =
  15. 15.838 × 5 =
  16. 16.211 × 6 =
  17. 17.389 × 4 =
  18. 18.476 × 4 =
  19. 19.797 × 8 =
  20. 20.261 × 9 =
  21. 21.126 × 4 =
  22. 22.116 × 5 =
  23. 23.188 × 8 =
  24. 24.798 × 6 =
  25. 25.421 × 8 =
  26. 26.664 × 6 =
  27. 27.576 × 3 =
  28. 28.227 × 7 =
  29. 29.891 × 4 =
  30. 30.357 × 6 =
  31. 31.203 × 5 =
  32. 32.285 × 4 =
  33. 33.631 × 3 =
  34. 34.228 × 7 =
  35. 35.745 × 4 =
  36. 36.276 × 7 =
  37. 37.485 × 7 =
  38. 38.405 × 6 =
  39. 39.918 × 7 =
  40. 40.321 × 4 =

Answer key

  1. 5859
  2. 1008
  3. 3160
  4. 3024
  5. 5832
  6. 3904
  7. 393
  8. 1410
  9. 603
  10. 2527
  11. 1072
  12. 3951
  13. 2889
  14. 6896
  15. 4190
  16. 1266
  17. 1556
  18. 1904
  19. 6376
  20. 2349
  21. 504
  22. 580
  23. 1504
  24. 4788
  25. 3368
  26. 3984
  27. 1728
  28. 1589
  29. 3564
  30. 2142
  31. 1015
  32. 1140
  33. 1893
  34. 1596
  35. 2980
  36. 1932
  37. 3395
  38. 2430
  39. 6426
  40. 1284

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