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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 994 · 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. 1.242 × 3 =
  2. 2.479 × 7 =
  3. 3.196 × 7 =
  4. 4.511 × 7 =
  5. 5.154 × 4 =
  6. 6.248 × 8 =
  7. 7.292 × 4 =
  8. 8.812 × 9 =
  9. 9.701 × 8 =
  10. 10.506 × 8 =
  11. 11.336 × 3 =
  12. 12.493 × 8 =
  13. 13.659 × 9 =
  14. 14.964 × 7 =
  15. 15.923 × 9 =
  16. 16.621 × 7 =
  17. 17.933 × 8 =
  18. 18.608 × 6 =
  19. 19.541 × 7 =
  20. 20.676 × 5 =
  21. 21.847 × 7 =
  22. 22.191 × 9 =
  23. 23.233 × 5 =
  24. 24.621 × 4 =
  25. 25.296 × 4 =
  26. 26.716 × 8 =
  27. 27.604 × 4 =
  28. 28.613 × 4 =
  29. 29.571 × 4 =
  30. 30.715 × 8 =
  31. 31.221 × 3 =
  32. 32.271 × 3 =
  33. 33.861 × 6 =
  34. 34.905 × 9 =
  35. 35.591 × 3 =
  36. 36.711 × 6 =
  37. 37.365 × 7 =
  38. 38.621 × 5 =
  39. 39.518 × 4 =
  40. 40.937 × 3 =

Answer key

  1. 726
  2. 3353
  3. 1372
  4. 3577
  5. 616
  6. 1984
  7. 1168
  8. 7308
  9. 5608
  10. 4048
  11. 1008
  12. 3944
  13. 5931
  14. 6748
  15. 8307
  16. 4347
  17. 7464
  18. 3648
  19. 3787
  20. 3380
  21. 5929
  22. 1719
  23. 1165
  24. 2484
  25. 1184
  26. 5728
  27. 2416
  28. 2452
  29. 2284
  30. 5720
  31. 663
  32. 813
  33. 5166
  34. 8145
  35. 1773
  36. 4266
  37. 2555
  38. 3105
  39. 2072
  40. 2811

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