Name: ________ Date:_________
Finding the unknown value (A7)
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1
3
+
3
=
7
8
2
7
+
1
=
8
7
3
1
+
x
=
13
4
12
4
x
+
1
=
5
6
6
5
4
+
x
=
1
2
5
5
5
6
x
+
1
1
=
1
5
3
6
6