三（1）班有52人，班长组织为地震灾区四川雅安捐款，平均每人捐了18元，这个班共捐款多少元？
把下面的假分数化成带分数或整数．= = = =
把带分数化成假分数．2= 3= 1= 4=
数的改写．（1）把下面的分数化成小数，小数化成分数．==0.28=0.035=（2）把下列分数中的假分数化成带分数，带分数化成假分数．====
把假分数化成带分数或把带分数化成假分数．====
把假分数化成带分数或把带分数化成假分数．= = = = =
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= 4
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