Question

Calculați: a) 2,5-(0,3+1,4); b) (2,5-0,3)+1,4; c) 5,25-(2,7-1,43); d) (5,25-2,7)-1,43.

Answer 1

Salutare!:)

a)

2,5-(0,3+1,4)=2,5-1,7=0,8

b)

(2,5-0,3)+1,4=2,2+1,4=3,6

c)

5,25-(2,7-1,43)=5,25-1,27=3,98

d)

(5,25-2,7)-1,43=2,55-1,43=1,12