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This is the advanced calculator used for AP maths – it allows the User to solve quadratic and cubic equations.

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This is the standard calculator approved for mathematic education in schools.

Enter This Weeks Competition
  • This challenge question comes from the answer series varsity maths prep book
    (Visit their website by clicking here)
  • The average of 80 numbers on a list is 79. The average of the first 55 numbers on the list is 74. What is the average of the remaining numbers?
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