Name: ________ Date:_________
Finding the unknown value (S10)
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1
1
3
–
1
1
=
5
4
2
5
–
4
=
6
5
3
3
–
x
=
13
5
30
4
x
–
1
=
7
5
15
5
3
–
x
=
5
4
3
12
6
x
–
1
=
1
4
2
4