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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 109 · 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. 1.376 × 8 =
  2. 2.373 × 9 =
  3. 3.823 × 5 =
  4. 4.233 × 3 =
  5. 5.375 × 6 =
  6. 6.137 × 6 =
  7. 7.877 × 6 =
  8. 8.256 × 6 =
  9. 9.204 × 4 =
  10. 10.139 × 4 =
  11. 11.552 × 4 =
  12. 12.922 × 9 =
  13. 13.287 × 3 =
  14. 14.182 × 8 =
  15. 15.283 × 7 =
  16. 16.409 × 4 =
  17. 17.941 × 6 =
  18. 18.735 × 6 =
  19. 19.811 × 4 =
  20. 20.124 × 7 =
  21. 21.231 × 5 =
  22. 22.951 × 6 =
  23. 23.704 × 3 =
  24. 24.931 × 6 =
  25. 25.902 × 3 =
  26. 26.119 × 5 =
  27. 27.433 × 5 =
  28. 28.769 × 4 =
  29. 29.987 × 3 =
  30. 30.476 × 8 =
  31. 31.879 × 7 =
  32. 32.125 × 6 =
  33. 33.548 × 7 =
  34. 34.193 × 3 =
  35. 35.141 × 4 =
  36. 36.701 × 9 =
  37. 37.686 × 6 =
  38. 38.259 × 6 =
  39. 39.558 × 4 =
  40. 40.221 × 4 =

Answer key

  1. 3008
  2. 3357
  3. 4115
  4. 699
  5. 2250
  6. 822
  7. 5262
  8. 1536
  9. 816
  10. 556
  11. 2208
  12. 8298
  13. 861
  14. 1456
  15. 1981
  16. 1636
  17. 5646
  18. 4410
  19. 3244
  20. 868
  21. 1155
  22. 5706
  23. 2112
  24. 5586
  25. 2706
  26. 595
  27. 2165
  28. 3076
  29. 2961
  30. 3808
  31. 6153
  32. 750
  33. 3836
  34. 579
  35. 564
  36. 6309
  37. 4116
  38. 1554
  39. 2232
  40. 884

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