900÷30 12×40 480÷80 16×6 12×7

420÷60 100×26 2400+300 5600÷70 320+780

90÷ 18 16×25 480+30 300-25×4 100-72÷8

689×5≈ 5430÷9≈ 3976÷8≈ 2080×4≈ 260×8≈

2, vertical calculation and checking calculation:

209×43 8652÷36

3. Off-mold calculation:

2 10+405÷9× 12 4020÷20- 18× 1 1

4, column calculation:

What's the difference between 345 minus 345 and 5? What is the sum of the quotients of 882 divided by 2 1 and 18?

5. A "Story King" has 65 pages. Xiaoming plans to finish reading in 4 days, and Xiaohua plans to finish reading in 6 days. How many pages does Xiaoming read on average every day? Where is Xiaohua?

6. Zhang has raised 18 ducks, and the number of chickens is twice that of ducks. How many chickens and ducks does Zhang Dabo keep?

7. There are 45 buses in the parking lot, and 17 is more than buses. How many buses and cars are there?

8. There are obviously 42 stamps, but Fangfang is less than him 15. How many stamps do they have?

9. A coat is 45 yuan, and pants are cheaper than a coat 12 yuan. How much does it cost to buy a suit?

10. The white rabbit pulled out 14 radishes, and the gray rabbit pulled out three times. How many trees did the white rabbit pull out less than the gray rabbit?

And:

At the end of the second semester of the 2005-2006 school year

Third grade mathematics comprehensive exercise volume

First, I can break through the mental arithmetic challenge field. (10 minutes, 6 minutes)

60÷3= 1.4-0.8= 300÷6= 140÷2=

46+38= 240÷6= 1800÷9= 4200÷7=

46÷2= 330-70 = 125╳8= 72÷9=

606÷3= 150÷5= 630÷9= 300-300÷6=

16╳20= 4. 1+0.8= 50╳ 16= 13╳3=

14╳20= 0÷ 1 1= 20╳60= 19╳20=

86-68= 30╳ 12= 20╳40= 330-70 =

80╳9= 1 1╳60= 12╳20= 18╳40=

6.7+2.5= 3.6- 1.8= 33╳30= 9-4.8=

24÷4= 80-6= 60÷4= 4+28=

15╳50= 147÷7= 14 1÷3= 25+75=

9 1÷7= 3╳4╳5= 137-67= 380╳ 10=

50╳50= 26÷2= 6.2+3.9= 783÷6=

804÷2= 7╳0= 780-70= 2407+3=

0.6+ 1.5= 8.4-7.5= 707÷7= 760-250=

2005-2006 school year second semester final self-study exam.

Third grade mathematics comprehensive exercise volume

(Answer time: 90 minutes)

School: Class: Name: Student ID

：

First, I can break through the mental arithmetic challenge field. (Another volume, 6 points)

Second, I'll fill it out. (15)

1, 300 square decimeter () square meter 7 square kilometer = () hectare

2. First, use decimals to express the prices of the following items, and then compare the sizes.

5 yuan 3 Angle 6 yuan 1 Angle 10 yuan 6 Angle 7 points 7 yuan 3 points.

() Yuan () Yuan () Yuan () Yuan

& lt& lt& lt

3. Talk about the treasure hunt route map of three small animals starting from home, and fill in the blanks.

60 meters

40 meters, 20 meters

(1) The rabbit walks 25 meters to (), and then walks () meters to the treasure.

(2) The bear walked () meters south, and then walked () for 20 meters to reach the treasure.

(3) The puppy walks 20 meters to (), and then walks () meters to the treasure.

4. Fill in the appropriate units on the horizontal line.

Xiaodong's height 135 (), and the area of a stamp is 4 ().

The playground covers an area of 1000 (), and the dictionary is 5 () thick.

5. Fill in the form:

2: 00 pm 65438+ 5: 00 pm 9: 40 pm

6. A square vegetable field with a side length of12m and an area of () m2.

7. On June 3rd this year, Xiao Qiang 12 turned old. He was born in ().

The quotient of 8876÷3 is () digits, the estimated result is (), and the exact value is ().

9. Yesterday's goods are: Today's goods are:

Two days a * * * into the () kind of goods.

10, there were () days in 2005 1 month, February and March, and () days in the whole year.

Third, sentence, I will be a small judge. (4 points)

1. The average height of students in our class is1.35m, and the height of each student is1.35m.. ( )

The quotient of 2.808÷4 is 22. ( )

3. 16 cm is 1.6 m. ()

4. I use 16 square and 1 cm2 to make different figures, and their areas are16cm2. ( )

Fourth, I will choose. (4 points)

There are () zeros at the end of the product of 1 and 25╳80.

a、 1 B、2 C、3

2、( )÷3= 103……2。

a、309 B、3 1 1 C、307

3. Dad starts to exercise at 17: 20, and ends at 1 hour in 30 minutes, ending in the afternoon ().

a、 18:50 B、6:50 C、 16: 10

4. The basketball court is 28m long and15m wide, with a half-court area of () m2.

a、2 10 B、240 C、86

5. I can calculate. (28 points)

1, for the following three questions, you think the right one is "√" and the wrong one is "╳". Please help correct the wrong one.

2 4 2

3 7 2 7

six

1 2

1 2

seven

six

1

( )

2. Write and check.

878÷3= 42╳28=

3. Off-mold calculation.

8 1╳7÷9 672÷(2╳3) 700-700÷5

920÷8+294 103+400-365

6. I can draw. (9 points)

1, draw the following figure with the part representing 0.3.

2. Each square in the figure represents 1 cm2. Please draw three different rectangles on the picture, so that their areas are all12cm2.

Measure it first, then calculate the area of rectangle.

Length () cm, width () cm,

Area () cm.

7. Would you please use your math knowledge to solve the following problems?

1、

About 80 kilometers per hour, about 5 kilometers per hour, about 20 kilometers per hour.

(1) How many times does a car walk faster than a person?

(2) What other math questions can you ask? Parallel solution.

Xiaoming's parents are out, and he is a small housekeeper. This is the cost chart of several things he bought.

Unit: Yuan

1 1

10 9.2

nine

8 7.5

7 6

six

five

four

three

2 1.2

1

Pork, shrimp, vegetables and eggs

(1) What is the highest cost? What costs the least and how much is the difference?

(2) How much is a * * *? Is 30 yuan in Xiaoming's wallet enough?

(3) What other math questions can you ask?

3. The following is the height record of our four-person group (unit: cm).

I'm Green, Liu Xiang and Xiao Si.

139 14 1 148 140

What is our average height?

4. There are 18 benches and 22 short benches in the school conference room. A bench can seat four people and a short bench can seat two people. Parents' meeting will be held in the third grade, 1 12 parents will attend. Are these stools enough for parents to sit on?

The four monks of Tang Dynasty are still 3000 kilometers away from the Flame Mountain. They travel 89 kilometers every day, can they reach the Flame Mountain in 42 days?

Xiaohua visited the museum on Sunday. There are several ways to get to the museum from his home (pictured). He walks an average of 62 meters per minute, and the time it takes to walk each route is shown in the figure. If you were a small flower, which route would you choose? Please draw a picture first, and then calculate how many meters to walk.

And:

Basic knowledge:

I. Fill in the blanks:

1, given the time and work efficiency, the relationship between the total work is: ().

2. The sum of the largest two digits and the smallest two digits is (), and the difference is ().

3. In □24÷35, if the quotient is two digits, the minimum value in □ should be filled in ().

4. Fill in the appropriate numbers:

12m = () decimeter 9 tons = () kg 1800 square decimeter = () square meter.

5, the dividend is expanded by 2 times, the divisor is unchanged, and the quotient ().

6. The rectangle is 60 meters long, 50 meters wide and has a circumference of ().

7. When a two-digit number is divided by three digits, the quotient is two digits, which means that the first two digits of the dividend are greater than the divisor ().

8. Fill in the appropriate unit name:

A pencil is 18 (), a desk is 7 () and a big tree is 15 ().

The length of the classroom is 9 () 90m = () decimeter = () cm.

9. The multiple of a number 19 is 36 1, and this number is ().

10,9275 Write the mantissa after omitting the highest digit ().

1 1. The rectangle has an area of 42 square decimeters, a width of 6 decimeters and a length of () decimeters.

12. To request the speed of a car, you must know two conditions () and (), and their relationship is ().

13 and () What can I fill in?

14×( )