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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 985 · 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. 1.146 × 4 =
  2. 2.687 × 5 =
  3. 3.858 × 9 =
  4. 4.591 × 3 =
  5. 5.514 × 6 =
  6. 6.163 × 5 =
  7. 7.579 × 5 =
  8. 8.779 × 4 =
  9. 9.611 × 3 =
  10. 10.776 × 4 =
  11. 11.916 × 7 =
  12. 12.946 × 5 =
  13. 13.546 × 9 =
  14. 14.851 × 9 =
  15. 15.457 × 4 =
  16. 16.351 × 9 =
  17. 17.502 × 3 =
  18. 18.596 × 8 =
  19. 19.912 × 4 =
  20. 20.121 × 5 =
  21. 21.178 × 4 =
  22. 22.418 × 5 =
  23. 23.812 × 5 =
  24. 24.167 × 3 =
  25. 25.465 × 7 =
  26. 26.283 × 3 =
  27. 27.851 × 3 =
  28. 28.521 × 8 =
  29. 29.271 × 7 =
  30. 30.865 × 9 =
  31. 31.489 × 6 =
  32. 32.237 × 9 =
  33. 33.657 × 5 =
  34. 34.755 × 3 =
  35. 35.197 × 4 =
  36. 36.453 × 6 =
  37. 37.781 × 4 =
  38. 38.307 × 6 =
  39. 39.641 × 9 =
  40. 40.501 × 4 =

Answer key

  1. 584
  2. 3435
  3. 7722
  4. 1773
  5. 3084
  6. 815
  7. 2895
  8. 3116
  9. 1833
  10. 3104
  11. 6412
  12. 4730
  13. 4914
  14. 7659
  15. 1828
  16. 3159
  17. 1506
  18. 4768
  19. 3648
  20. 605
  21. 712
  22. 2090
  23. 4060
  24. 501
  25. 3255
  26. 849
  27. 2553
  28. 4168
  29. 1897
  30. 7785
  31. 2934
  32. 2133
  33. 3285
  34. 2265
  35. 788
  36. 2718
  37. 3124
  38. 1842
  39. 5769
  40. 2004

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