Name: ________ Date:_________
Finding the unknown value (A23)
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1
7
+
2
=
10
9
2
5
+
7
=
6
9
3
1
+
x
=
7
3
12
4
x
+
2
=
1
1
5
10
5
5
+
x
=
1
1
6
2
3
6
x
+
1
=
3
2
4
4