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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 507 · 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. 1.716 × 5 =
  2. 2.876 × 5 =
  3. 3.619 × 3 =
  4. 4.888 × 6 =
  5. 5.147 × 3 =
  6. 6.361 × 5 =
  7. 7.123 × 7 =
  8. 8.489 × 6 =
  9. 9.356 × 4 =
  10. 10.272 × 7 =
  11. 11.905 × 7 =
  12. 12.641 × 7 =
  13. 13.832 × 6 =
  14. 14.657 × 9 =
  15. 15.224 × 9 =
  16. 16.715 × 7 =
  17. 17.252 × 6 =
  18. 18.699 × 8 =
  19. 19.331 × 7 =
  20. 20.557 × 7 =
  21. 21.555 × 6 =
  22. 22.301 × 4 =
  23. 23.891 × 3 =
  24. 24.476 × 4 =
  25. 25.632 × 6 =
  26. 26.579 × 4 =
  27. 27.761 × 4 =
  28. 28.928 × 5 =
  29. 29.263 × 5 =
  30. 30.609 × 8 =
  31. 31.444 × 9 =
  32. 32.617 × 3 =
  33. 33.255 × 6 =
  34. 34.675 × 8 =
  35. 35.566 × 4 =
  36. 36.345 × 6 =
  37. 37.395 × 7 =
  38. 38.639 × 4 =
  39. 39.142 × 6 =
  40. 40.728 × 9 =

Answer key

  1. 3580
  2. 4380
  3. 1857
  4. 5328
  5. 441
  6. 1805
  7. 861
  8. 2934
  9. 1424
  10. 1904
  11. 6335
  12. 4487
  13. 4992
  14. 5913
  15. 2016
  16. 5005
  17. 1512
  18. 5592
  19. 2317
  20. 3899
  21. 3330
  22. 1204
  23. 2673
  24. 1904
  25. 3792
  26. 2316
  27. 3044
  28. 4640
  29. 1315
  30. 4872
  31. 3996
  32. 1851
  33. 1530
  34. 5400
  35. 2264
  36. 2070
  37. 2765
  38. 2556
  39. 852
  40. 6552

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