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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 19 · 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. 1.799 × 4 =
  2. 2.215 × 3 =
  3. 3.231 × 8 =
  4. 4.224 × 5 =
  5. 5.121 × 7 =
  6. 6.911 × 5 =
  7. 7.761 × 9 =
  8. 8.751 × 9 =
  9. 9.188 × 3 =
  10. 10.663 × 7 =
  11. 11.872 × 9 =
  12. 12.967 × 9 =
  13. 13.824 × 7 =
  14. 14.184 × 5 =
  15. 15.367 × 5 =
  16. 16.838 × 4 =
  17. 17.924 × 4 =
  18. 18.907 × 6 =
  19. 19.616 × 3 =
  20. 20.114 × 8 =
  21. 21.283 × 7 =
  22. 22.236 × 8 =
  23. 23.392 × 3 =
  24. 24.855 × 4 =
  25. 25.901 × 7 =
  26. 26.951 × 9 =
  27. 27.982 × 7 =
  28. 28.233 × 9 =
  29. 29.422 × 3 =
  30. 30.275 × 3 =
  31. 31.628 × 5 =
  32. 32.206 × 9 =
  33. 33.415 × 9 =
  34. 34.434 × 5 =
  35. 35.767 × 5 =
  36. 36.961 × 6 =
  37. 37.491 × 7 =
  38. 38.116 × 6 =
  39. 39.239 × 9 =
  40. 40.911 × 4 =

Answer key

  1. 3196
  2. 645
  3. 1848
  4. 1120
  5. 847
  6. 4555
  7. 6849
  8. 6759
  9. 564
  10. 4641
  11. 7848
  12. 8703
  13. 5768
  14. 920
  15. 1835
  16. 3352
  17. 3696
  18. 5442
  19. 1848
  20. 912
  21. 1981
  22. 1888
  23. 1176
  24. 3420
  25. 6307
  26. 8559
  27. 6874
  28. 2097
  29. 1266
  30. 825
  31. 3140
  32. 1854
  33. 3735
  34. 2170
  35. 3835
  36. 5766
  37. 3437
  38. 696
  39. 2151
  40. 3644

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