Question

efectuează respectând ordinea de rezolvare indicată a)[(45+5)x8-20x5]÷100
b)200-[(25+25x25(:50]÷13
c)2x[90:2+(120:4-20)]x10
d)2007+18:[2+(16-108:27):3]
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Answer 1

Răspuns:

a)[50×8-20×5]÷100=

(400-100)÷100=

300÷100=3

b)200-[(25+625)÷50]÷13=

200-[650÷50]÷13=

200-13÷13=

200-1=199

c)2×[45+10]×10=

2×55×10

110×10=1100

d)2007+18÷[2+(16-4)÷3]

2007+18÷[2+12÷3]=

2007+18÷(2+4)=

2007+18÷6=

2007+3=2010