Name: ________ Date:_________
Find the Unknown Numbers(S1)
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1
6887
–
5554
=
2
1997
–
996
=
3
4
2
1
3
–
3
1
6
6
4
32
–
(
x
+
18)
=
1
5
x
–
(6
×
4)
=
2
6
6
×
(9
–
3)
=
7
x
–
6
÷
2
=
2