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혼합계산 : 레벨2

1
(6+1)-7+1
=
1
2
(6X2)-6+3
=
9
3
1X9+(1X6)
=
15
4
(4+8)-6X1
=
6
5
(2+3)+1+5
=
11
6
(3X8)X2/4
=
12
7
8/1-(4/4)
=
7
8
9X(4/2)X7
=
126
9
1X8+(2+6)
=
16
10
(9+2)-1/1
=
10
11
4X6+(1+6)
=
31
12
1+(2-1)X9
=
10
13
(2X9)+4X5
=
38
14
8+5/(2/2)
=
13
15
3X(2+5)/3
=
7