Question

calculeaza, respectând ordinea efectuării parantezelor:

a)27-6x4=
b)90-45:5-13+17
c)20+(5x6-42:6)=
d)12:[4+(27-57:3):4]=
e)2x[320:4-(5+240:8):7]=

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Answer 1

Răspuns:

a) 27-6×4=27-24=3

b) 90-45:5-13+17=90-9-13+17=81-13+17=68+17=85

c) 20+(5×6-42:6)=20+(30-7)=20+23=43

d) 12:[4+(27-57:3):4]=12:[4+(27-19):4]=12:(4+8:4)=12:(12:4)=12:3=4

e) 2×[320:4-(5+240:8):7]=2×[80-(5+30):7]=2×(80-35:7)=80-5=75

Explicație:

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