Question

[10,5×8-1,5×(4,2×0,5+7,2÷0,2)]÷1000
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Answer 1

[ 10, 5 × 8 - 1, 5 × ( 4, 2 × 0, 5 + 7, 2 : 0, 2 ) ] : 1000 =

[ 84 - 1, 5 × ( 2, 1 + 72 : 2 ) ] : 1000 =

[ 84 - 1, 5 × ( 2, 1 + 36 ) ] : 1000 =

( 84 - 1, 5 × 38, 1 ) : 1000 =

( 84 - 57, 15 ) : 1000 =

26, 85 : 1000 = 0, 02685