一辆汽车，前3小时共行192千米，后2小时每小时行58千米，这辆汽车的平均速度是多少千米？
直接写出得数．
直接写出得数．÷=+=÷=×= 1÷0.25=÷1=÷3=﹣=
直接写出得数．÷=×3= 6×=+×7= 100÷10%=÷1=÷7=
=÷21= 2.4×= 42÷=×= 10×10%= 3﹣1= 3π= 1﹣+=×÷×=
÷8= 1÷0.01=×6=÷= 1÷=+=﹣=÷=+=×=
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÷
=
+
=
÷
=
×
=
÷1=
÷3=
﹣
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÷
=
×3= 6×
=
+
×7=
÷1=
÷7=
=
÷21= 2.4×
= 42÷
=
×
=
= 3π= 1﹣
+
=
×
÷
×
=
÷8= 1÷0.01=
×6=
÷
= 1÷
=
+
=
﹣
=
÷
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+
=
×
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