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혼합계산 : 레벨2

1
6X6-(2X1)
=
34
2
(9+6)+3X6
=
33
3
1+(2+5)-3
=
5
4
3X6+(2X5)
=
28
5
3+(8+4)+7
=
22
6
6/6X(3/3)
=
1
7
8-(5X1)+2
=
5
8
8-5/(1X1)
=
3
9
4/4X(3+5)
=
8
10
(3X3)+5+5
=
19
11
8X(7X5)X8
=
2240
12
9+(2+9)-7
=
13
13
4+(4+9)-4
=
13
14
1+5X(4+2)
=
31
15
4+3+(2X1)
=
9