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혼합계산 : 레벨2

1
5+2X(9+9)
=
41
2
3X(8X9)/4
=
54
3
(4+5)X1+2
=
11
4
(5+1)X2+9
=
21
5
2X4-(5X1)
=
3
6
4X(2/1)-2
=
6
7
(7/1)X7+8
=
57
8
3+1X(1+6)
=
10
9
(3+6)-5/5
=
8
10
(7-2)X4X1
=
20
11
2+5+(1X4)
=
11
12
(6X4)-4+1
=
21
13
(9-2)X4X7
=
196
14
(4+1)X6X9
=
270
15
(7+8)X1+5
=
20