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a fost răspuns

Calculeaza respectând ordinea efectuării operatiilor: a) 7•8+(87-79):4. 24+5•(25:5:5-1)+25. 3•2:6•[20+(54:9:2-1)]-20 [(5•4+3•4):(9•8-8•8)] :4

Răspuns :

a)56+8:4=56+2=58
b)24+5*0+25=24+25=49
c)3*2:6[20+(6:2-1)]-20=1(20+2)-20=22-20=2
d)[(5*4+3*4):(9*8-8*8)]:4=[(20+12):(72-64)]:4=32:8:4=4:4=1
Sdanutza
a) 7×8 + 8÷4= 56+2= 58
24+5×0+25=24+0+25=49
3×2÷6×(20+2)-20= 1× 22-20=22-20=2
(20+12) ÷ ( 72-64)÷4=32÷8÷4=1