Question

Efectuaţi:

a)28,4:10²+×[16,8-(400:100-4)];
b)124,5(7,82:10-0,54)-2,4².

DAU 100 DE PUNCTE SI CORONA!



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Answer 1

Răspuns:

28.4:100+10(16.8-0)=0.284+168=168.284

si

124,5x(0.782-0.54)-5.76 =30.129-5.76=24.369

Explicație pas cu pas:

A)28,4:100+10[16,8-(4-4)]=.0,284+10*(16,8-0)=0,284+10*16,8=0,284+168=168,284

B)124,5*(0,782-0,54)-5,76=124,5*0,242-5,76=30,129-5,76=24,369