Question

Calcule: A) (-1)-(-7)=
B) (-7)-(+5)=
C) (+5)-(+2)=
D) (+6)-(-7)=

Answer 1

a)(-1)-(-7)=6. b)(-7)-(+5)=-12. c)(+5)-(+2)=3. d)(+6)-(-7)=13

Answer 2

A) (-1)-(-7)=
- 1 - 7
=+8

B) (-7)-(+5)=
- 7+5
= - 12

C) (+5) - (+2)=
+5 +2
= +3

D) (+6)-(-7)=
+6 - 7
= - 13