WS #1
Inverse and Identity Property of Addition
Use the identity and inverse property of addition to fill in the missing number.
1)
5 +
=
0
2)
+
0 =
7
3)
4 +
=
0
4)
+
8 =
8
5)
0 +
=
15
6)
+
6 =
0
7)
3 +
=
3
8)
+
9 =
0
9)
5 +
=
5
10)
+
0 =
4
11)
11 +
=
0
12)
+
9 =
9
13)
+
7 =
0
14)
2 +
=
2
15)
0 +
=
1
16)
+
0 =
12
17)
13 +
=
0
18)
+
6 =
6
19)
1 +
=
0
20)
+
0 =
8
21)
0 +
=
14
22)
+
0 =
10
23)
2 +
=
0
24)
+
3 =
3
25)
8 +
=
0
26)
+
0 =
11
27)
12 +
=
0
28)
+
13 =
13
29)
+
15 =
0
30)
0 +
=
2
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