Question

1)1,5-2=
1,7-4=
1,9-5=

2) -5+4,9=
-6+5,6=
-3+6,3=

Answer 1

1.5-2= -0.5

1.7-4= -2.3

1.9-5=  -3.1

-5+4.9= -0.1

-6+5.6= -0.4

-3+6.3=3.3