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혼합계산 : 레벨2

1
2X7-(5-2)
=
11
2
1X8X(4+6)
=
80
3
1X5+(5+1)
=
11
4
7+(3+5)-4
=
11
5
6+4+(5+3)
=
18
6
2X1+(2X6)
=
14
7
(5+5)X3/2
=
15
8
3X(7-2)-8
=
7
9
(4+7)+3-8
=
6
10
(2+5)X6+1
=
43
11
(7+4)-6/3
=
9
12
1+(9-2)/1
=
8
13
(5X8)-7+3
=
36
14
5X2+(8X1)
=
18
15
6X(1X1)/2
=
3