1. Triangle can be divided into () triangle, () triangle and () triangle.

230.69 million is () million, and 387.33 million is () billion.

3. The number consisting of 9 decimal places and 38 percentage points is (), which is the decimal place of ().

4.0.08 is 8 times the original number, and 42 is 0.042 times the original number.

5. An isosceles triangle with a base angle of 35 and a top angle of ().

6.7.096 Keep two decimal places about (), and the precision to the tenth place is about ().

7. Two decimal places are 9.5 after rounding. The maximum value of these two decimal places is (), and the minimum value is ().

8.9020kg = () tons 32.76km = () kilometers () meters.

1.82 yuan = () Yuan () Jiao () Minute 5 m 20 cm = () cm.

9. put ">" in ○. "<" or "=".

9/10.06 65438+50 million1500,000

3 km 56 m 3.56 km 7 kg 6800 g

Second, sentence. (Tick "√" in brackets for correctness and "×" for error. ) (10)

1. A triangle with two acute angles is called an acute triangle. ………………( )

2. The second number to the right of the decimal point is the percentile. …………………………( )

3. 13 1-63+37= 13 1-(63+37)。 …………………………( )

You can make a triangle with three sticks with the length of 4cm, 6cm and 9cm respectively. ( )

5.5 1 colorful flags (inserted at both ends) are inserted next to the straight runway, and their interval is 2 meters. This runway is102m long. …( )

Third, choose one. Fill in the correct serial number in brackets. ) (10)

1. Among the following figures, the number that reads two zeros is ().

a、20 1008 B、300.06 C、805.07 D、 190.07

2. To make 29 □ 680 ≈ 300,000, in □

a、 1 B、4 C、6 D、5

3. Make an equilateral triangle with at least ().

a、 1 B、2 C、3 D、4

There are () decimal places between 4.0. 1 and 0.9.

A, 7 B, 8 C, 9 D, countless

5. In the following figures, the same size without 0 is ().

a、650 B、6.50 C、6.25 D、6.05

Fourth, do math. (25 points)

1. Write directly.

42×50= 0.6-0.47= 25×8= (59+2 1) ×(72÷6)=

1-0.06= 0.8+4.7= 0.75× 100= 5.6÷ 100× 10=

2. Use a simple method to calculate.

4 15- 176-24 8.29+3.7+0.7 1+6.3

125×89×8 428 ×78+572×78

3. Recursive equation calculation.

15×27-3000÷25 2 16+64×42÷28 (324-285) × 12÷26

5. Draw a picture and mark it. (5 points)

Mark the location of Xiaohong and Xiaogang's house on the floor plan below.

1. Xiaohong's home is 30 northeast of the school, about 800 meters away from the school.

2. The school is 45 northwest of Xiaogang's home, about 1000 meters away from the school.

Sixth, solve the problem. (25 points)

1. On Children's Day, Mr. Wang bought costumes for children's performances and spent the same money on three T-shirts and five pairs of shorts. 39 yuan, how much is each pair of shorts and each T-shirt?

Xiaolan's mother took 50 yuan to buy food. Buy meat dishes 28.75 yuan, buy vegetarian dishes 6.35 yuan. How much is left?

3. 8 bags of rice and 8 bags of flour in the school canteen, each bag contains 50 kilograms of rice and 25 kilograms of flour. A * * *, how many Jin of food?

Dongdong weighs 38kg, my cousin weighs half as much as him, and my grandfather weighs four times as much as my cousin. How many kilograms does grandpa weigh?

The following is a statistical table of the number of computers owned by every 100 households in a certain area from 2000 to 2005.

Statistical table of computer ownership per 100 households in a certain area from 2000 to 2005

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