算一算、填一填5km2= m2250t= kg4200cm= m 3L﹣300mL= mL7006kg=7t+ kg．
根据乘法算式写出除法算式．
△×6=1.8△= ．
16÷ =× = 49÷ =÷ =× = 2.4× =3．
被除数÷除数=商 ÷ =除数； × =被除数．
在下面的横线里填人适当的运算符号． 28 0.5=14 28 2.5=11.2 27 4.5=6 28 0.5=56．
× =
÷ =
× =
2.4× =3．
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