1 and 52 are four times (), and 52 is four times ().

The product of 2.36×2 1 is () digits, and there are () zeros at the end of the product of 46×50.

3, 7 square meters = () square centimeters 3 square kilometers = () hectares.

500 square decimeter = () square meter 600 hectares = () square kilometer.

4. The direction opposite to the east is (), and the direction opposite to the north is ().

The library is open at 8:00- 17:00 every day. One * * * opening () hour.

6.2 16 divided by 5, the quotient is (), and the remainder is ().

7. Fill in the appropriate units in ().

Mingming's waist length is 60 (), and the wall clock surface area is 5 ().

The area of a wall is 18 (), and the area of a desktop is about 50 ().

Second, I will judge. (Correct drawing √, incorrect drawing ×) 10.

The area of the classroom is 7 square kilometers. ( )

2, 22 o'clock is the evening 10. ( )

There is only one decimal 0.3 between 3, 0.2 and 0.4. ( )

4. A square with a side length of 10 decimeter and a circumference of 4 meters. The area is 1 m2. ( )

By looking at the number of days in February, we can judge whether a year is a normal year or a leap year. ( )

Third, I will choose. (12)

The product of 1 and 80×50 has () zeros at the end.

a、2 B、3 C、4

2. If 10 rabbits are exchanged for 1 sheep, and 4 sheep can be exchanged for 2 pigs, then 4 pigs can be exchanged for () rabbits.

a、80 B、60 C、40

3. Mr. Huang goes to work at 8: 00 a.m. and leaves work at 4: 00 p.m. He works for one day ().

A, 6 hours b, 7 hours c, 8 hours

The football factory produces 1500 footballs in five days. According to this calculation, how many footballs will be produced in three days? The correct formula is ()

a、 1500 5×3 B、 1500 5×3 C、 1500 3×5

5, in the following years, leap year is ()

a， 1900b， 1997c， 1996。

6. When a number is divided by 9, the quotient is 6 and the remainder is 7. This number is ().

a、6 1 B、62 C、63

Fourth, I can calculate. (20 points)

1, directly determine the number (4 points)

20×50= 24×35= 12×30= 4000÷5=

1.4+2.3= 0.6+ 1.7= 1.3-0.8= 2.7+0.5=

2, estimate (4 points)

79÷4≈ 550÷8 ≈ 30×69 ≈ 52×88≈

3, vertical calculation (6 points)

980÷7= 63×87= 10. 1-8.4=

4. Calculation of parting (6 points)

705-362+ 128 186÷6× 15 240- 168÷4

Five, I can draw (5 points)

Each cell below represents 1 cm2. Please draw a rectangle with an area of 30 square centimeters.

Six, calculate the area and perimeter of the following graphics (10)

Seven, I will solve the problem. (26 points)

1. The TV sales statistics of a store are as follows:

Month/month 1 2 3 4

Sales volume/set153165105125

How many TV sets have been sold on average every month in these four months? (5 points)

2. The rectangular flower bed is 50 meters long and 38 meters wide. How many square meters is this flower bed? If you walk around the altar, how many meters will you walk?

The building materials store has 3000 kilograms of cement, which has been shipped for 4 days, and there are 600 kilograms left. How many kilograms are transported on average every day? (5 points)

4. The plane flies 23 kilometers per minute, and the distance that the artificial earth satellite flies per minute is more than 2 1 times 17 kilometers. How many kilometers does the artificial earth satellite fly per minute? (5 points)

There are 40 students in Class 5.3 (1), among whom 25 subscribed to Arabian Nights, 23 subscribed to Aesop's Fables, and 19 subscribed to two kinds of publications. So, how many people have not subscribed to these two publications? (6 points)

Attached answer:

I. Southwest China 1, 208 13 2, 3 2 3, 70000 300 5 6 4

5,9,6,43,65,438+0,7 cm square decimeter square decimeter

Two. 1, × 2, √ 3, × 4, √ 5, √.

Third, 1, B 2, A 3, C 4, A 5, C 6, a.

Fourth,

1、 1000 840 360 800 3.7 2.3 0.5 3.2

2、20 70 2 100 4500

3、 140 548 1 1.7

4、47 1 465 198

Verb (abbreviation for verb) negligence

6. Area: 893 square meters, perimeter: 132 meters, area: 144 square decimeter, perimeter: 48 decimeter.

Seven, 1, 137 units

2.1900m2176m

3600 kg

4,500 kilometers

5, 1 1 person