475-298= 1-0.09= 0.22= 1÷ × = ÷3+ × =
3.3+7= 16÷0.8= - = 4×4÷ = ( + )×24=
1+=
=
1÷1%=
0.125×800=
1.2-0.02=
0.375÷0.125=
7×60%=
0.52=
时间/分
1
2
3
4
5
…
路程/千米
7
14
21
A.
B.
C.