혼합계산 : 레벨2
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혼합계산: 레벨249
1
(7+2)X9-7
=
74
2
5X(7-1)-2
=
28
3
(6X9)+1+5
=
60
4
(4+4)+3-6
=
5
5
(5-1)X2+5
=
13
6
(2X9)-2-4
=
12
7
(2+6)X1-3
=
5
8
(6/2)+5/1
=
8
9
1+3-(2+1)
=
1
10
1X3/(9-6)
=
1
11
5X(3X5)X4
=
300
12
(7X3)-5+4
=
20
13
9X2X(6X5)
=
540
14
7-5+(6+5)
=
13
15
5X9/(9X1)
=
5