Name: ________ Date:_________
Finding the unknown value (S37)
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1
1
1
–
1
1
=
2
3
2
3
–
1
=
5
2
3
1
–
x
=
1
4
20
4
x
–
1
=
1
2
3
5
5
–
x
=
1
6
3
2
6
x
–
1
=
7
5
6
30