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The first grade of primary school, the second volume of mathematics extracurricular expansion training questions
1. Xiaohong went upstairs with her father. Xiaohong walks slowly, but his father walks fast. When Xiaohong went to 1 building, his father had already gone to the second floor. When Xiaohong went to the third floor, which floor did his father go to

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2. A fruit group 10 people, 7 people like bananas and 5 people like apples. How many people like bananas and apples?

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3. The duckling said it was strange and strange. There is a chicken in the duckling team, counting, it is the sixth, counting backwards, it is the seventh, how many ducklings are there?

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Find a rule to fill numbers.

① 5、7、9、 1 1、 13、( )

②0、 1、 1、2、3、5、8、( )

5. Fill in the numbers as needed

( 1)36、 12、45、7、35、23、60、55

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(2) 13、24、 15、7、6 1、25、 14、8

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