First, fill in
1, this year is (), with () days in January and () days all year round.
2. Today is the week (), and it will be the week () in 50 days.
3. The area of a square with a side length of 100 meters is one ().
4. Estimate and fill in the appropriate units:
A blackboard is about (). The area of a stamp is about 8 ().
The basketball court covers an area of 400 (). The area of the cover of the math book is 360 ().
Xiaoming weighs about 28 (). The fence around the flower bed is about 10 () long.
5.8 square meters = () square decimeter. 5 yuan 6 jiao = () yuan.
8 cm = () meter 200 square decimeter = () square meter. 5 o'clock = () minutes
Second, do math.
Numbers written directly are calculated vertically.
Third, choose one (fill in the correct answer number in brackets).
1, the following year is a leap year ().
a，2 100b， 1986c， 1996。
2. In the following Chinese characters, () is an axisymmetric figure.
A, Tian Yi, Guo Bing, Sheng
3.2 1.6 1 is pronounced ().
Answer: 2 1.6 1b, 2 1.6 1c, 2 1.6 1
4. The product () of the following three formulas is closest to 600.
a、3 1× 19 B、27×20 C、25×30
Fourth, solve the problem.
See the dolphin show
1. There are 22 rows of seats in the museum, each row of seats 15, 30 yuan for adults, and 5 yuan for children/kloc-0.
A group of 300 people from Sunshine Tour Group came to watch the dolphin show. Are these seats enough?
A teacher took 23 students to see a dolphin show. How much did the supply and demand sides pay?
③ The dolphin show lasts 40 minutes and starts at 9: 30. When will it end?
Xiao Ming's family has to pay 35 yuan's water fee every month. How much maintenance do you have to pay a year?
3.720 batteries are packed in a box every 9 and 5. How many cases can a * * * hold?
4. Weihai-Beijing railway length1072km. A train departs from Weihai and travels 644 kilometers in 7 hours. At this speed, will this train arrive in Beijing 1 1 hour later?
5. A rectangular nursery, 95 meters long and 80 meters wide.
(1) What is the area of this nursery?
(2) Put a fence around the nursery. How long is the fence?
6. The first group of boys and girls in the third grade, each person 15 laps. The following statistics show the number of laps in their collection.
Male students' ring statistics and female students' ring statistics.
How many boys are trapped on average? Where are the girls?