Question

2-Calcule:
a) (+3,8) + (+5,72) =
B) (-1,75) + (-3,84)=
C) (+1,75) - (+8,13) =
D) (-4,72) - (-0,28) =

Me ajudem

Answer 1

2)a)(+3,8)+(+5,72)
(+3,8)+(5,72)
+3,8+5,72=9,52

b)(-1,75)+(-3,84)
(-1,75)-(3,84)
-1,75-3,84= -5,59

c)(+1,75)-(+8,13)
(+1,75)-(8,13)
+1,75-8,13= -6,38

d)(-4,72)-(-0,28)
(-4,72)+(0,28)
-4,72+0,28= -4,44