Practice
Calculate.a) -9 − 6 =
-15
-15
b) 2 + 8 =
10
10
c) -7 + 8 =
1
1
d) -8 + 5 =
-3
-3
e) -8 + 8 =
0
0
f) 9 + 2 =
11
11
g) 2 − 2 =
0
0
h) 6 + 4 =
10
10
i) -9 + 9 =
0
0
j) 4 + 8 =
12
12