Name: ________ Date:_________
Finding the unknown value (S30)
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1
7
–
3
=
8
5
2
4
–
1
=
5
3
3
3
–
x
=
11
6
30
4
x
–
1
=
7
6
12
5
4
–
x
=
3
5
2
10
6
x
–
1
=
2
6
2
3