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23 October, 04:47

Simplify the expression.

4 + 18 : 2 - 1

20

22

12

10

+3
Answers (1)
  1. 23 October, 07:49
    0
    The order you have to work it out is is

    Brackets

    Indices

    Divide

    Multiply

    Add

    Subtract

    There are no brackets or indices so you start with the dividing, then you add, then you subtract. This is called bidmas.

    18/2=9

    9+4=13

    13-1=12
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