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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 820 · 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. 1.145 × 7 =
  2. 2.202 × 6 =
  3. 3.691 × 5 =
  4. 4.409 × 4 =
  5. 5.943 × 7 =
  6. 6.922 × 9 =
  7. 7.601 × 4 =
  8. 8.629 × 8 =
  9. 9.693 × 3 =
  10. 10.399 × 8 =
  11. 11.497 × 5 =
  12. 12.953 × 8 =
  13. 13.501 × 8 =
  14. 14.664 × 3 =
  15. 15.721 × 8 =
  16. 16.481 × 9 =
  17. 17.559 × 6 =
  18. 18.642 × 7 =
  19. 19.921 × 4 =
  20. 20.291 × 4 =
  21. 21.825 × 5 =
  22. 22.956 × 6 =
  23. 23.541 × 7 =
  24. 24.903 × 7 =
  25. 25.416 × 9 =
  26. 26.279 × 8 =
  27. 27.303 × 4 =
  28. 28.331 × 4 =
  29. 29.673 × 4 =
  30. 30.175 × 3 =
  31. 31.471 × 9 =
  32. 32.403 × 9 =
  33. 33.229 × 9 =
  34. 34.881 × 3 =
  35. 35.631 × 4 =
  36. 36.288 × 3 =
  37. 37.928 × 5 =
  38. 38.214 × 8 =
  39. 39.615 × 9 =
  40. 40.832 × 9 =

Answer key

  1. 1015
  2. 1212
  3. 3455
  4. 1636
  5. 6601
  6. 8298
  7. 2404
  8. 5032
  9. 2079
  10. 3192
  11. 2485
  12. 7624
  13. 4008
  14. 1992
  15. 5768
  16. 4329
  17. 3354
  18. 4494
  19. 3684
  20. 1164
  21. 4125
  22. 5736
  23. 3787
  24. 6321
  25. 3744
  26. 2232
  27. 1212
  28. 1324
  29. 2692
  30. 525
  31. 4239
  32. 3627
  33. 2061
  34. 2643
  35. 2524
  36. 864
  37. 4640
  38. 1712
  39. 5535
  40. 7488

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