1. Rectangular length10cm, width 5cm. Divide it into two identical squares, the perimeter of which is () and the area is ().

2, 2 meters 4 cm written in decimal is () meters, 2 yuan 5 Angle written in decimal is () yuan.

3. Xiaohong scored an average of 92 points in the three exams. It is known that the average score of the first and second exams is 9 1, and her third score is ().

4. Fill in the appropriate units in the brackets.

The area of the desk is about 24 () and the blackboard is 4 () long.

The area of the stamp is 12 (), and the length of the pencil is 16 (

5. The circumference of a square is 12 decimeter, the side length is () decimeter, and the area is () square decimeter.

The quotient of 6.3□2÷8 is less than 40 and divisible, and □ should be filled in ().

7. The product of three digits multiplied by two digits is at least () digits and at most () digits.

8.372÷9≈ () is calculated with 372 as (), and 32×60≈ () is calculated with 32 as ().

9. The remainder must be less than (). When the divisor is 7, the remainder is ().

10, find a regular number: A 3, 6, 9, 12, ();

B 2、8、32、 128 、()； C 162、54、 18、6、.

Second, right or wrong. (5 points)

1, today is 65438+February 30th, and tomorrow is New Year's Day. ( )

2. The side length of a square is 4cm, and the circumference and area are exactly equal. ()

3. On the physical education class, the students stood in a row, and the teacher asked them to press 1, 2, 3, 4, 5, and count off circularly. The last number is 2, and the number of people in this row may be 27. ( )

1000 kg of rice is as heavy as a ton of flour. ( )

5. There must be 0 in the middle of dividend and 0 in the middle of quotient. ( )

Third, think carefully and choose carefully. (6 points)

How many times can 1 and 9 1 be subtracted consecutively? Column into the formula is ().

a、9 1-7 B、9 1+7 C、9 1×7 D、9 1÷7

() is a leap year.

a， 1900b，2000c， 1800。

3. It takes 2 minutes to saw the water pipe into two sections and () minutes to saw the water pipe into six sections.

a、 10 B、 12 C、6

4. Two squares with a side length of 2 cm make a rectangle, and the circumference of this rectangle is ().

a， 16cm b，24cm c， 12cm

A doorman goes to work at 9 o'clock in the evening and gets off work at 7 o'clock the next morning. His working hours are ().

A, 10 hour b, 9 hours c, 8 hours

6. Product of125× 80 ()

A. There are three zeros at the end. There are two zeros at the end. There are four zeros at the end.

.

Four, accurate calculation (30 points)

1, oral calculation. (3 points)

1000-60= 50×20= 250÷5=

47×3= 30×50×0= 290×30=

2. estimate. (4 points)

476×3 3468÷7 2 195×4 82 10÷9

3, vertical calculation (10 points)

1 14×6= 1482÷5= 380×24 = 385 ÷9

4. Calculate with recursive equation (9 points)

302×34-47 456÷3+324 8×(53 1-276)

5. Column calculation. (9 points)

(1), what is the quotient of 6 divided by 325? What is the remainder?

(2) The quotient 2 1 remainder 3 of a number divided by 4. What is the quotient of this number divided by 2?

(3) The perimeter of the square playground is 48 meters. What is its area?

Verb (abbreviation of verb) Operation: (***3 points)

1. Draw a rectangle with an area of12cm2 in the grid diagram. How many can you draw? (Each square represents 1 cm2)

Sixth, contact life to ask questions. (3 1)

1, rectangular playground, 45 meters long and 35 meters wide. Xiao Li ran five times along the playground. How many meters did a * * * run? (5 points)

2. The total length of the canal is 53 12m. It has been repaired for 8 days, and there are 456 meters left. How many meters are repaired on average every day? (5 points)

The railway between city a and city b is 960 kilometers long. On June 22nd, A train leaves for B at 8: 00 a.m. and arrives at 8: 00 p.m.. How many kilometers does this train run per hour? (5 points)

4. A road maintenance team repairs an average of 25 kilometers per day in the first two days and 15 kilometers per day in the last three days. How many thousands have been repaired on average these days? (5 points)

There are 50 students rowing. Each large ship can take 6 people, and the rent is 10 yuan. Each boat can take four people and rent 8 yuan. If you are a small family now, how can you rent a minimum boat? What's the minimum rent? (5 points)

6. There is a vegetable field, 29 meters long and 2 1 meter wide. There is a 1 m wide path around and in the middle of the site. What is the actual area of vegetable fields? (6 points)