Name: ________ Date:_________
Finding the unknown value (A28)
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1
4
+
2
=
7
5
2
7
+
1
=
10
4
3
3
+
x
=
11
4
12
4
x
+
1
=
7
5
10
5
1
+
x
=
9
4
5
20
6
x
+
2
=
1
1
6
3
2