14-4=
11-7=
15-7=
16-8=
12-6=
19-6=
13-6+8=
7+6+ 5=
14-6-6=
11-8+8=
12-5+7=
15-6-2=
8+9-8=
7+8-3=
10-6+2=
25+30= 58-8= 70+6= 30+20-10=
77+5= 24-7= 65-3= 87-50+30=
把这些数按从小到大的顺序排一排:
<<<
67% 3.5×0.99 3.5÷0.9