Question

Calcule as diferenças: a) (+8)-(+2) b) ( -5)-(-4) c) (-5)-(+3) d) (-7)-(+2) e) (-1) -( 7) f) (-5)-(+5) g) (-4) -(-4) h) (-7)+(+5)

Answer 1

a) (+8)-(+2)
+ 8 - 2
+ 6

b) ( -5)-(-4)
- 5 + 4
- 1

c) (-5)-(+3)
- 5 - 3
- 8

d) (-7)-(+2)
- 7 - 2
- 9

e) (-1) -( 7)
- 1 - 7
- 8
f) (-5)-(+5)
- 5 - 5
- 10

g) (-4) -(-4)
- 4 + 4
0

h) (-7)+(+5)
- 7 + 5
- 2