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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 39 · 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. 1.279 × 5 =
  2. 2.328 × 4 =
  3. 3.761 × 4 =
  4. 4.259 × 3 =
  5. 5.428 × 4 =
  6. 6.271 × 3 =
  7. 7.671 × 9 =
  8. 8.527 × 3 =
  9. 9.964 × 8 =
  10. 10.813 × 3 =
  11. 11.947 × 7 =
  12. 12.909 × 8 =
  13. 13.358 × 6 =
  14. 14.324 × 9 =
  15. 15.781 × 7 =
  16. 16.209 × 4 =
  17. 17.649 × 5 =
  18. 18.218 × 9 =
  19. 19.807 × 6 =
  20. 20.223 × 4 =
  21. 21.722 × 9 =
  22. 22.913 × 5 =
  23. 23.474 × 8 =
  24. 24.782 × 3 =
  25. 25.387 × 3 =
  26. 26.769 × 7 =
  27. 27.922 × 6 =
  28. 28.432 × 3 =
  29. 29.368 × 5 =
  30. 30.821 × 8 =
  31. 31.976 × 7 =
  32. 32.215 × 6 =
  33. 33.821 × 4 =
  34. 34.339 × 4 =
  35. 35.917 × 7 =
  36. 36.256 × 3 =
  37. 37.757 × 6 =
  38. 38.249 × 8 =
  39. 39.663 × 6 =
  40. 40.752 × 4 =

Answer key

  1. 1395
  2. 1312
  3. 3044
  4. 777
  5. 1712
  6. 813
  7. 6039
  8. 1581
  9. 7712
  10. 2439
  11. 6629
  12. 7272
  13. 2148
  14. 2916
  15. 5467
  16. 836
  17. 3245
  18. 1962
  19. 4842
  20. 892
  21. 6498
  22. 4565
  23. 3792
  24. 2346
  25. 1161
  26. 5383
  27. 5532
  28. 1296
  29. 1840
  30. 6568
  31. 6832
  32. 1290
  33. 3284
  34. 1356
  35. 6419
  36. 768
  37. 4542
  38. 1992
  39. 3978
  40. 3008

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