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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 878 · 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. 1.806 × 5 =
  2. 2.138 × 8 =
  3. 3.881 × 6 =
  4. 4.921 × 4 =
  5. 5.817 × 7 =
  6. 6.158 × 4 =
  7. 7.163 × 8 =
  8. 8.611 × 8 =
  9. 9.542 × 3 =
  10. 10.462 × 5 =
  11. 11.607 × 8 =
  12. 12.316 × 4 =
  13. 13.621 × 5 =
  14. 14.714 × 3 =
  15. 15.644 × 4 =
  16. 16.243 × 3 =
  17. 17.643 × 5 =
  18. 18.952 × 9 =
  19. 19.597 × 9 =
  20. 20.222 × 4 =
  21. 21.153 × 7 =
  22. 22.863 × 3 =
  23. 23.469 × 7 =
  24. 24.404 × 9 =
  25. 25.331 × 8 =
  26. 26.818 × 8 =
  27. 27.365 × 8 =
  28. 28.904 × 6 =
  29. 29.479 × 5 =
  30. 30.664 × 9 =
  31. 31.926 × 8 =
  32. 32.398 × 7 =
  33. 33.949 × 3 =
  34. 34.937 × 4 =
  35. 35.646 × 5 =
  36. 36.263 × 8 =
  37. 37.342 × 3 =
  38. 38.521 × 6 =
  39. 39.261 × 6 =
  40. 40.777 × 3 =

Answer key

  1. 4030
  2. 1104
  3. 5286
  4. 3684
  5. 5719
  6. 632
  7. 1304
  8. 4888
  9. 1626
  10. 2310
  11. 4856
  12. 1264
  13. 3105
  14. 2142
  15. 2576
  16. 729
  17. 3215
  18. 8568
  19. 5373
  20. 888
  21. 1071
  22. 2589
  23. 3283
  24. 3636
  25. 2648
  26. 6544
  27. 2920
  28. 5424
  29. 2395
  30. 5976
  31. 7408
  32. 2786
  33. 2847
  34. 3748
  35. 3230
  36. 2104
  37. 1026
  38. 3126
  39. 1566
  40. 2331

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