3.5+4.5=
=
3.6÷40%=
4r2-22=
2.01-0.1=
20×15%=
7×8÷7×8= 0×0.35+3.5= +=
×+×= 0.52= 6×3.14=
所行路程/km
0
5
10
15
20
25
……
耗油量/L
1
2
3
4