Name: ________ Date:_________
Finding the unknown value (A4)
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1
6
+
1
1
=
9
2
2
1
+
1
1
=
5
4
3
4
+
x
=
13
5
10
4
x
+
1
=
1
6
3
5
4
+
x
=
21
5
4
20
6
x
+
2
=
16
3
5
15