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探索规律 - PowerPoint PPT Presentation

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探索规律

76÷2＝

A 36

B 38

69÷3＝

A 32

B 23

350÷7＝

A 5

B 50

240÷3＝

A 80

B 90

540÷6＝

A 80

B 90

7200÷9＝

A 800

B 8000

360÷2＝

A 180

B 130

560÷7＝

A 80

B 90

66÷6＝

A 11

B 12

78÷6＝

A 13

B 14

（1） 40元可以买成人票多少张？

400元、4000元可以买成人票多少张？

（2）40元可以买学生票多少张？

400元、4000元可以买学生票多少张？

A 钱数扩大几倍，购买的张数也扩大相同的倍数。

B 票价不变，钱数扩大几倍，购买的张数也扩大相同的倍数。

80

400÷5＝

300÷5＝

200÷5＝

100÷5＝

60

40

20

A 被除数不变，除数缩小2倍，商也缩小2倍。

B 被除数不变，除数缩小2倍，商扩大2倍。

C 除数缩小2倍，商扩大2倍。

A 被除数不变，除数扩大2倍，商扩大2倍。

B 被除数不变，除数扩大2倍，商缩小2倍。

C 除数扩大2倍，商缩小2倍。

A 780

B 156

C 36

45

360÷8＝

360÷6＝

360÷4＝

360÷2＝

60

90

180