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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 615 · 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. 1.708 × 7 =
  2. 2.333 × 4 =
  3. 3.873 × 3 =
  4. 4.225 × 6 =
  5. 5.891 × 7 =
  6. 6.407 × 3 =
  7. 7.928 × 5 =
  8. 8.453 × 4 =
  9. 9.134 × 8 =
  10. 10.616 × 3 =
  11. 11.887 × 7 =
  12. 12.838 × 3 =
  13. 13.591 × 4 =
  14. 14.251 × 3 =
  15. 15.972 × 6 =
  16. 16.987 × 5 =
  17. 17.339 × 6 =
  18. 18.721 × 8 =
  19. 19.307 × 6 =
  20. 20.868 × 5 =
  21. 21.209 × 9 =
  22. 22.632 × 7 =
  23. 23.295 × 7 =
  24. 24.469 × 9 =
  25. 25.539 × 6 =
  26. 26.303 × 3 =
  27. 27.231 × 8 =
  28. 28.354 × 8 =
  29. 29.209 × 5 =
  30. 30.185 × 8 =
  31. 31.882 × 6 =
  32. 32.527 × 9 =
  33. 33.517 × 9 =
  34. 34.465 × 8 =
  35. 35.532 × 8 =
  36. 36.141 × 8 =
  37. 37.242 × 4 =
  38. 38.922 × 8 =
  39. 39.921 × 8 =
  40. 40.339 × 9 =

Answer key

  1. 4956
  2. 1332
  3. 2619
  4. 1350
  5. 6237
  6. 1221
  7. 4640
  8. 1812
  9. 1072
  10. 1848
  11. 6209
  12. 2514
  13. 2364
  14. 753
  15. 5832
  16. 4935
  17. 2034
  18. 5768
  19. 1842
  20. 4340
  21. 1881
  22. 4424
  23. 2065
  24. 4221
  25. 3234
  26. 909
  27. 1848
  28. 2832
  29. 1045
  30. 1480
  31. 5292
  32. 4743
  33. 4653
  34. 3720
  35. 4256
  36. 1128
  37. 968
  38. 7376
  39. 7368
  40. 3051

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