Class name score

First, fill in the blanks.

1, 20kg is lighter than () kg 10%, and () m is 2( 1) longer than 5m.

2. One end of the balance has a chocolate, and the other end has two (1) chocolates and a weight of 50g, so the balance is just balanced. The weight of the whole chocolate is () grams.

3. A triangular vegetable field, the side length ratio is 4: 3: 5, the perimeter is168m, and the longest side length is () m..

4. It takes 4 days for Party A to complete the same work alone, and 5 days for Party B.. The work efficiency of B is ()% of that of A. ..

5, sampling inspection of a commodity, 48 kinds of qualified, 2 kinds of unqualified, the qualified rate of this commodity is ().

6.8 (7): 1.5 The simplest integer ratio is (), and the ratio is ().

7. The base of the triangle is 3 cm long and 5 cm high. The ratio of the area of a parallelogram with the same base height to the area of this triangle is (): ().

8. The price of a commodity is reduced by 20% during the promotion period, and the price is increased by 20% after the promotion. At this time, the price of the goods is ()% of the original price.

9.6 1 A work started, originally scheduled to be completed in one month. In actual construction, the task was completed on June 20th. According to this calculation, ()% was overfulfilled before June 30th.

10, the tractor plowed 8( 7) hectares in 6( 5) hours. According to this calculation, it takes () hours to plow one hectare, and one hour can plow () hectares.

Second, the judgment question.

1, the first term and the last term of the ratio are multiplied by the same number at the same time, and the ratio remains unchanged. …………………………( )

2.A is 5 meters higher than B, and B is 5 meters shorter than A. ..........................................................................................................................................................

3. Four students in Grade 6 were absent from class today, and 46 students were present, with an attendance rate of 92%. ………………………………( )

The sum of the minuend, subtraction and difference is twice that of subtraction and difference. ………………………………( )

5. Put 8 grams of salt into 200 grams of water, and the salt in the prepared brine is 4%. ………………………………( )

Third, multiple choice questions.

1. Add 5g of salt and10g of water to the brine with a salt content of 30%, and the salt content of the brine is ().

A, greater than 30% B, equal to 30% C, less than 30% D, uncertain.

2. For the rope 1 meter between the leaders of Party A and Party B, Party A cuts 5( 4) meters, Party B cuts 5( 4), and the remaining rope ().

A, A is shorter than B, A and B are equal in length, and C, A is longer than B, which is uncertain.

3. If 8X+8 = 24, then 4X+3 = ()

a、 1 1 B、 10 C、9 D、8

4. Both cars of Party A and Party B leave from AB relatively at the same time. After 3 hours, Party A will drive 8( 3), Party B will drive 5( 4), and the () car is closer to the midpoint.

A, A B, B C, uncertain

5. A batch of goods has been transported by car for 5 times, with more than 5( 3) times and less than 4( 3) times, and it takes at most () times to transport the goods.

a、8 B、9 C、 10 D、 1 1

Fourth, the calculation problem.

7( 1 )÷7+7÷7( 1 ) 6-(7( 1 )÷2+3) 4( 3 )×88+4( 1 )÷88( 1 )

[ 1-(4( 3 )+ 12( 1 ))]×2( 3 ) 99%+9 1×( 13( 2 )-7( 1 ))

Fifth, the title.

(1) 60% of a number is 32 more than 60% of 32, and (2) a number is 4 more than 2% of 20. What is this number?

What's this number?

Sixth, the application problem.

1. The actual cost of a bridge is 2 1 10,000 yuan, which is 8 more than the original plan (1). What was the original planned cost?

2. yangqiao Village wants to dig a canal of 480m. On the first day, it dug 60%, and on the second day it dug 8( 1). * * * How many meters have you dug in two days?

3. For a pile of coal, the ratio of tonnage transported on the first day to total tonnage is 1: 4. 4.5 tons were shipped the next day, and just 3% of the total tonnage was shipped in two days (1). How many tons is this pile of coal?

4. Two workshops 150 people. If 50 people are transferred from other places to the first workshop, the number of people in the first workshop is 3( 2) people in the second workshop. How many people are there in workshop 2?

5. Two cars, A and B, set off at the same time, in opposite directions, and met after 7 hours. Car A is 20 kilometers slower than car B every hour, and the speed ratio of the two cars is 7: 9. How many kilometers are the two places apart?