That's because the result may VARY, depending on the order. Try, for example, 1 + 2 x 3, which can either be 7 or 9, depending on which calculation you do first.
Therefore, it is important to have a general agreement on the order of operations.
what is astronomers and mathmaticians
hypatia of Alexandria
Pringles
"why" is not a mathematical symbol.
Pengui
John Napier.
George washington carver
about 1,241,100,000,000 but all i know is 3.1415926535987932384
To find the roots (solutions) of a quadratic equation.
It doesn't have two factors.
Yes and they knew about the significance of a zero symbol in mathematics.
It means that the calculator can follow the order of operations and do the order of operations for you but, you need to know how to do them on your own too.