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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 13 · 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. 1.166 × 8 =
  2. 2.226 × 5 =
  3. 3.415 × 3 =
  4. 4.711 × 4 =
  5. 5.651 × 7 =
  6. 6.324 × 7 =
  7. 7.967 × 5 =
  8. 8.351 × 4 =
  9. 9.982 × 4 =
  10. 10.989 × 5 =
  11. 11.293 × 4 =
  12. 12.461 × 8 =
  13. 13.793 × 7 =
  14. 14.184 × 6 =
  15. 15.725 × 8 =
  16. 16.291 × 5 =
  17. 17.348 × 3 =
  18. 18.274 × 8 =
  19. 19.125 × 4 =
  20. 20.801 × 6 =
  21. 21.121 × 3 =
  22. 22.254 × 3 =
  23. 23.162 × 4 =
  24. 24.269 × 7 =
  25. 25.521 × 5 =
  26. 26.791 × 5 =
  27. 27.221 × 4 =
  28. 28.151 × 6 =
  29. 29.852 × 9 =
  30. 30.871 × 8 =
  31. 31.961 × 5 =
  32. 32.735 × 5 =
  33. 33.181 × 8 =
  34. 34.586 × 7 =
  35. 35.655 × 9 =
  36. 36.521 × 3 =
  37. 37.953 × 7 =
  38. 38.158 × 3 =
  39. 39.495 × 5 =
  40. 40.678 × 6 =

Answer key

  1. 1328
  2. 1130
  3. 1245
  4. 2844
  5. 4557
  6. 2268
  7. 4835
  8. 1404
  9. 3928
  10. 4945
  11. 1172
  12. 3688
  13. 5551
  14. 1104
  15. 5800
  16. 1455
  17. 1044
  18. 2192
  19. 500
  20. 4806
  21. 363
  22. 762
  23. 648
  24. 1883
  25. 2605
  26. 3955
  27. 884
  28. 906
  29. 7668
  30. 6968
  31. 4805
  32. 3675
  33. 1448
  34. 4102
  35. 5895
  36. 1563
  37. 6671
  38. 474
  39. 2475
  40. 4068

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