《《百分数与小数的互化》课时测评》由会员分享，可在线阅读，更多相关《《百分数与小数的互化》课时测评（4页珍藏版）》请在金锄头文库上搜索。
1、1 / 4第一课时 百分数与小数的互化基础练基础练知识点一知识点一 小数化成百分数的方法小数化成百分数的方法1.把下面的小数或整数化成百分数。0.14 0.080.105 33.2 10.32 1.5722.连线。 （找出相等的两个数）2.5 205%2.05 20.5%0.25 25%0.205 250%知识点二知识点二 百分数化成小数的方法百分数化成小数的方法3.把下面的百分数化成小数或整数。42% 5%5.6% 230%100% 13.7%56.72% 0.8%4.判断。（1）把百分数化成小数，只要把百分号去掉，再在数字前添上小数点即可。 （ ）（2）在 12.7 的后面添上一个百分号，
2、这个数就缩小到原来的。 （ ）1 100（3）把 47.9%扩大到原来的 10 倍是 4.79。 （ ）（4）所有的百分数都可以化成小数或整数。 （ ）综合练综合练5.把下面各数按从大到小的顺序排列。（1）0.32 33% 1 3（2） 3.14 31% 2 / 46.简算。0.463254%327.A 的 30%等于 B 的 40%，A 是 240，B 是多少？参考答案参考答案1.14% 8% 10.5% 300% 320% 1030% 200% 157.2%2. 3.0.42 0.05 0.056 2.3 1 0.137 0.5672 0.0084.（1） （2） （3） （4）5.（1）
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