一辆汽车上午9：30出发，晚上8时30分到达目的地，共行驶660千米．这辆汽车每小时行驶多少千米？
直接写出得数． 0.49÷0.7= 0.77+0.33= 0÷= 3.06﹣2.6=×200=÷8= 0.21×= 0.52=
0.9÷0.1= 2﹣2÷3= 3÷= 1﹣﹣= 190÷25÷4= 0.55×20= 1.2﹣= 2.7×=
直接写出得数． 0.6÷0.3= 2÷=+=×=﹣=÷=（+）×6=（2+）×8=
15÷0.25= 1.5×= 2.4+1= 1÷1.25×8= 24×== 10= 8+=×1.8=== 0.78+1+0.32=
直接写出得数． 1﹣45%= 0.4÷2.5= 15÷=×=÷=×=
=
×200=
÷8=
= 0.52=
= 1﹣
﹣
=
= 2.7×
=
=
+
=
×
=
﹣
=
÷
=（
）×6=（2+
）×8=
= 2.4+1
= 1÷1.25×8=
=
= 10
= 8
+
=
×1.8=
=
= 0.78+1
+0.32=
=
×
=
÷
=
×
=
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