Posts Tagged ‘simple’
Jan 11, 2022
Math You Might Find Useful For Daily Problem Solving

Order of operations

Parenthesis, Exponents/Power, Multiplication, Division/Modulus, Addition, Subtraction

Notation example
(a2 * b) + c – d
1. a2
2. * b
3. + c
4. – d

Proportions

a / A = x / X

a   b
=
A   B

You’re trying to solve x. You have to cross-multiply. Be mindful of order of operations.

x * A = a * X
x = a * X / A

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