Name: ________ Date:_________
Finding the unknown value (S27)
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1
1
2
–
5
=
3
6
2
4
–
3
=
5
4
3
3
–
x
=
11
4
20
4
x
–
1
=
7
4
20
5
4
–
x
=
2
5
3
15
6
x
–
1
=
11
5
4
20