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혼합계산 : 레벨2

1
5-(2X5)+6
=
1
2
(1+2)+5/5
=
4
3
(4+4)-2X1
=
6
4
(5+3)/8X1
=
1
5
1X(3X7)+7
=
28
6
3+(5X6)X1
=
33
7
7X(1+5)+9
=
51
8
(6X7)-5+3
=
40
9
3+8X(5-2)
=
27
10
2X(7X4)+4
=
60
11
(1+4)X1+8
=
13
12
4+2+(9-4)
=
11
13
6/(6/1)+8
=
9
14
(4+3)+8-2
=
13
15
2+7X(6X1)
=
44