Name: ________ Date:_________
Finding the unknown value (A24)
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1
3
+
1
=
10
7
2
7
+
1
=
9
5
3
1
+
x
=
8
3
15
4
x
+
1
=
1
2
3
15
5
1
+
x
=
1
6
6
3
6
x
+
1
=
1
1
4
3
12