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a fost răspuns

ajutooor , dau coroană!!

Efectueaza:

a) 100:(6+4)+2x(25+10)
b) 72:9x(20-3x5)

Răspuns :

a ) 100 : ( 6 + 4 ) + 2 x ( 25 + 10 ) =

= 100 : 10 + 2 x 35

= 10 + 70

= 80

b ) 72 : 9 x ( 20 - 3 x 5 ) =

= 8 x ( 20 - 15 )

= 8 x 5

= 40

Cocirmariadenis

a)

100 : ( 6 + 4 ) + 2 x ( 25 + 10 )= 80

= 100 : 10 + 2 x 35 =

= 10 + 70 =

= 80

___________________________

b)

72 : 9 x ( 20 - 3 x 5 )= 40

= 8 x ( 20 - 15 ) =

= 8 x 5 =

= 40