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(a 2,75×10+8,4×100=?; (b 4,14,×5-7,6×0,1; (c 3,02×25-0,745×100; (d 54,3÷10+25×0,04;

Răspuns :

a) = 867.5
b) = 19.94
c) = 1
d) = 6.43