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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 936 · 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. 1.451 × 3 =
  2. 2.616 × 3 =
  3. 3.128 × 9 =
  4. 4.175 × 7 =
  5. 5.886 × 5 =
  6. 6.691 × 7 =
  7. 7.392 × 6 =
  8. 8.151 × 3 =
  9. 9.505 × 4 =
  10. 10.391 × 9 =
  11. 11.197 × 6 =
  12. 12.901 × 8 =
  13. 13.594 × 4 =
  14. 14.518 × 3 =
  15. 15.444 × 6 =
  16. 16.177 × 5 =
  17. 17.486 × 9 =
  18. 18.831 × 7 =
  19. 19.231 × 3 =
  20. 20.155 × 3 =
  21. 21.458 × 3 =
  22. 22.987 × 3 =
  23. 23.211 × 7 =
  24. 24.661 × 4 =
  25. 25.728 × 6 =
  26. 26.911 × 9 =
  27. 27.692 × 5 =
  28. 28.686 × 4 =
  29. 29.225 × 5 =
  30. 30.971 × 9 =
  31. 31.825 × 5 =
  32. 32.541 × 5 =
  33. 33.403 × 7 =
  34. 34.745 × 3 =
  35. 35.857 × 8 =
  36. 36.852 × 3 =
  37. 37.394 × 8 =
  38. 38.302 × 3 =
  39. 39.811 × 9 =
  40. 40.922 × 8 =

Answer key

  1. 1353
  2. 1848
  3. 1152
  4. 1225
  5. 4430
  6. 4837
  7. 2352
  8. 453
  9. 2020
  10. 3519
  11. 1182
  12. 7208
  13. 2376
  14. 1554
  15. 2664
  16. 885
  17. 4374
  18. 5817
  19. 693
  20. 465
  21. 1374
  22. 2961
  23. 1477
  24. 2644
  25. 4368
  26. 8199
  27. 3460
  28. 2744
  29. 1125
  30. 8739
  31. 4125
  32. 2705
  33. 2821
  34. 2235
  35. 6856
  36. 2556
  37. 3152
  38. 906
  39. 7299
  40. 7376

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