8: > < < >
9: 0.5÷0.025=20
10: 1.5 3.7 1.5 3.7
11: 16 99.8 5.78 1.2
12: ﹙59-4.6﹚÷3.2+1=18
13:100÷2.5×5.6=224
14: 20 63.75 42.5 26.8
提交 重置