= 68×
= 20×
= 42×
=
24×
= 21×
= 45×
=
= 30×
= 
135×
= 
54×
= 7×
= 36×
=
= 34×
= 125×
= 
= 4×
= 19×
= 30×
= 
＝ 4×
＝ 14×
＝ 24×
＝
＝ 
8×
＝ 56×
＝＝ 
16×
＝ 28×
＝ 
= 4×
= 7×= 12×
=
= 
9×
= 39×
=
28×
= 
33×
= 
，还有多少千米没行驶？ 
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