Name: ________ Date:_________
Finding the unknown value (S7)
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1
1
3
–
3
=
5
4
2
3
–
3
=
4
5
3
4
–
x
=
11
5
20
4
x
–
2
=
2
3
15
5
3
–
x
=
7
5
4
20
6
x
–
1
=
11
4
5
20