Name: ________ Date:_________
Finding the unknown value (A30)
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1
3
+
3
=
5
8
2
5
+
4
=
8
9
3
3
+
x
=
14
5
15
4
x
+
1
=
1
1
3
12
5
4
+
x
=
1
7
5
3
15
6
x
+
1
=
2
2
6
3