First, the number written directly is 10%

+ = - = 12× = ÷3= × 14=

20÷ = ×5= × = 2- = + =

+ = - = ×3= × = ÷ =

1÷ = 0× = 1× = 2÷ = ÷ 1=

2. Fill in the blanks by 20% (2 points for each question)

1, and the hectare is () hectare.

2, () is 100 tree.

3. Divide the 5-meter-long iron wire into 8 segments on average, and each segment accounts for the whole length.

These two paragraphs are () meters.

4、 = 12÷( )=( )÷ 12

5. When 15 point = (), 5 km = () km () m.

6. The current price is lower than the original price, which shows that the price reduction is right.

× =

7. The decimal unit is (), and the decimal unit like () becomes the smallest prime number.

8. There are 48 sixth-grade students in Huannan Primary School, including 28 boys and 20 girls. The number of boys is () times that of girls, and the number of girls is the whole grade.

9. The area of parallelogram is square meters, and it is a triangle with equal base and equal height.

The area is () square meters.

10. A rope is 4 meters long. It was cut off for the first time, with () meters cut off and () meters left.

Third, judge 4%

1, there are at least two divisors of natural numbers. ( )

2. The reciprocal of a false score is not necessarily a true score. ( )

3. Two different prime numbers must be coprime numbers. ( )

4, because the number of A is equal to the number of B (A and B are not equal to zero).

So the number a is smaller than the number B.

Four, calculate 36% (3 points per question)

1, the following questions, how to calculate how simple.

+ + + 15÷ × × + ×

( - )× 12 ÷4÷ ×(26÷ )

2. Solve the following equation

X× × = 3X- = X+ X= 1- X=

3. Text issues

What's the difference if you subtract the product of multiplication?

The sum of a number is. What is the number?

V. Application problem 30%

1, Dongfeng Machine Tool Works produced 400 machine tools in April, and the output in May increased compared with that in April. How many more units were produced in May than in April? Thinking: Think of () as the unit "1" and ask how many more units were produced in May than in April, that is, what is ()?

Answer:

The railway between a and b is 464 kilometers long. A passenger train and a freight train leave from two places at the same time, face to face, and meet after 3.2 hours. The bus speed is 76 kilometers per hour, and the truck speed is how many kilometers per hour?

3. A rectangular goldfish bowl, measured from the inside, is meters long, meters wide and meters high. The water depth in the fish tank is 100 meter. What is the maximum cubic meter of water in the fish tank?

4, a rectangular aluminum plate, meters wide, long and wide. What is the length of this aluminum plate? How many square meters is its area?

Master Wang would knit a one-meter-long blanket when he was a child. How many meters of blankets does he weave per hour on average? How many hours does it take to weave a blanket 1 meter long?

6. The school bought 24 volleyballs. There are more football than volleyball.

Answer to the question 1

Answer to question 2