Solutions by everydaycalculation.com
How to solve 25-(20-(10-(7-5)))? The answer is 13. Read on for stepwise instructions to solve mathematical expressions using the rules of BODMAS or order of operation.
25 - ( 20 - ( 10 - ( 7 - 5 ) ) )
25 - ( 20 - ( 10 - 2 ) )
25 - ( 20 - 8 )
25 - 12
13
Order of operation
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