Question

a) (+4) + (+1) – (+3)
b) (+1) – (+2) - (-1)
c) (-3) - (+1) + (+4)
d) (-2) – (-4) + (-1)
e) (+2) – (+1) – (+4)
f) (+1) – (+2) + (+1)
Ayuda estoy meco

Answer 1

4+1-3
5-3
2

1-2+1
-1+1
0

-3-1+4
-4+4
0

-2+4-1
2-1
1

2-1-4
1-4
-3

1-2+1
-1+1
0