First, fill in the blanks.

1. There are () days in a normal year and () days in a leap year.

2. () has 28 days in February, and () has 29 days in February.

Lingling won't celebrate her fifth birthday until she is 20. She was born in ().

4. Use the 24-hour timing method to indicate the following time.

6 am () 3 pm () 7 pm ()

1 1 afternoon () 12: 05 noon ()

5. Display the following time by using ordinary timing method. (12)

22: 00 () 1 1 () 13: 30 ()

20: 00 () 9: 00 () 19: 40 ()

6. On Saturday night, Xiaohua 10: 00 went to bed and got up at 8: 00 the next morning.

I slept () hours.

7. There will be () days in February next year and () weeks () days in August next year.

Second, the judgment question. (6 points)

1, Xiaogang's birthday falls on February 30th. ( )

2. 8 o'clock in the evening, 24 o'clock is 20 o'clock. ( )

3. 4: 30pm and 4: 30pm have the same meaning. ( )

There are as many days in the second half of a normal year as in a leap year. ( )

In one day, the hour hand walked twice. ( )

6. The evening 12 is also 0 o'clock the next day. ( )

Third, I will choose. (*** 12)

1, the next month is 3 1 day is ().

A, 65438+ October, March B, April, May C, September, 65438+ October

2. () January, February and March ***90 days. A, flat year b, leap year c, every year

3. Night shift workers take over at night 1 1 and get off work at 7: 00 the next morning. The working time of this shift is () hours.

a、7 B、8 C、9

4.22: 00, 15 is ()

A, 2 a.m. 15 a.m. b, afternoon 10 a.m. 10 a.m.

A brief answer to mathematics in grade four or three. (Do not write the calculation process) (24 points)

1, Xiaohua arrives at school at 7: 30 every morning, 1 1: 30 and goes home from school. 65438+ arrive at school at 0: 50 pm and finish school at 4: 50 pm. How much time does he spend at school a day?

2. The radio starts at 6: 00 and ends at 13: 00. The second broadcast starts at 16: 30 and ends at 1: 00 the next morning. How long is it broadcast a day?

The shop is open from 7: 30 am to 8: 00 pm. How long is it open a day?

The opening hours of West Lake Park are from 6: 00 am to 0: 00 pm every day. How many hours is it open a day?

The library opens at 8 am and closes at 8 pm. What are the opening hours of the day?

6. The football match starts at 15: 30 and ends at 120. When did it end?