The order of operations is:

1) brackets

2) multiplying and dividing

3) adding and subtracting

Example:

28 ÷ 4 + 3 x 6

= 7 + 18 = 25

but,

28 ÷ (4 + 3) x 6

= 28 ÷ 7 x 6

= 4 x 6 = 24

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