Question

Efetue as operações a seguir,igualando as casas decimais e fazendo a conta armada:
a)12,15+4,8

b)1,58+2,761

c)5-0,345

d)0,012+0,12+1,2

e)3,826-1,03

Answer 1

a) $12,15+4,8=16,95$
b) $1,58+2,761=4,341$
c) $5-0,345=4,655$
d) $0,012+0,12+1,2=1,332$
e) $3,826-1,03=2,796$