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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 486 · 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. 1.428 × 4 =
  2. 2.416 × 8 =
  3. 3.216 × 8 =
  4. 4.665 × 8 =
  5. 5.372 × 8 =
  6. 6.799 × 4 =
  7. 7.424 × 6 =
  8. 8.987 × 9 =
  9. 9.749 × 6 =
  10. 10.637 × 4 =
  11. 11.758 × 4 =
  12. 12.273 × 7 =
  13. 13.521 × 4 =
  14. 14.647 × 8 =
  15. 15.969 × 7 =
  16. 16.197 × 9 =
  17. 17.427 × 4 =
  18. 18.368 × 6 =
  19. 19.294 × 8 =
  20. 20.121 × 5 =
  21. 21.972 × 5 =
  22. 22.874 × 5 =
  23. 23.321 × 8 =
  24. 24.362 × 7 =
  25. 25.211 × 3 =
  26. 26.195 × 4 =
  27. 27.188 × 3 =
  28. 28.674 × 9 =
  29. 29.249 × 3 =
  30. 30.133 × 6 =
  31. 31.707 × 6 =
  32. 32.247 × 7 =
  33. 33.399 × 9 =
  34. 34.401 × 7 =
  35. 35.189 × 3 =
  36. 36.954 × 3 =
  37. 37.701 × 5 =
  38. 38.567 × 4 =
  39. 39.731 × 5 =
  40. 40.921 × 7 =

Answer key

  1. 1712
  2. 3328
  3. 1728
  4. 5320
  5. 2976
  6. 3196
  7. 2544
  8. 8883
  9. 4494
  10. 2548
  11. 3032
  12. 1911
  13. 2084
  14. 5176
  15. 6783
  16. 1773
  17. 1708
  18. 2208
  19. 2352
  20. 605
  21. 4860
  22. 4370
  23. 2568
  24. 2534
  25. 633
  26. 780
  27. 564
  28. 6066
  29. 747
  30. 798
  31. 4242
  32. 1729
  33. 3591
  34. 2807
  35. 567
  36. 2862
  37. 3505
  38. 2268
  39. 3655
  40. 6447

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