8+7-2-3×4=1
8-7+2+3-4=2
8-7+2×3-4=3
8-7+2-3+4=4
8+7-2×3-4=5
8-(7×2)÷(3×4) =6
[(8-7)÷2+3]×4=7
8÷(7-2-3)+4=8
(8-7)×2+3+4=9
8-7+2+3+4=10
麻烦
8+7-2-3×4=1
8-7+2+3-4=2
8-7+2×3-4=3
8-7+2-3+4=4
8+7-2×3-4=5
8-(7×2)÷(3×4) =6
[(8-7)÷2+3]×4=7
8÷(7-2-3)+4=8
(8-7)×2+3+4=9
8-7+2+3+4=10
麻烦