Name: ________ Date:_________
Finding the unknown value (A37)
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1
3
+
3
=
5
10
2
4
+
1
=
9
6
3
3
+
x
=
1
1
5
10
4
x
+
1
=
11
6
30
5
5
+
x
=
1
13
6
5
30
6
x
+
1
=
7
3
4
12