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혼합계산 : 레벨2

1
1+(2+8)-4
=
7
2
2+(6+4)/1
=
12
3
(5X8)-3+1
=
38
4
9/3X(1+7)
=
24
5
3X6/(1+5)
=
3
6
4X2X(4-2)
=
16
7
8+4+(3+1)
=
16
8
1+(4-2)+8
=
11
9
(5X3)-9+1
=
7
10
(1X5)+2-5
=
2
11
4X(2+3)-4
=
16
12
2+1/(7/7)
=
3
13
1+3/(1X3)
=
2
14
(3-2)+9X2
=
19
15
(2+1)X1+3
=
6