Fill in the blanks.

1.288 thousand nine hundred (), the approximate number in ten thousand years is ().

2. February of1990 is () days.

3. Both internal angles of a triangle are 65, and this triangle is called () triangle.

6 o'clock on April 2nd = () hours.

5.4 hectares and 50 square meters = () square meters.

6. The parallelogram has an area of 72 square meters, a height of 6 meters and a base length of ().

7. 1.04 is pronounced as ().

Second, judge whether the following questions are true or false.

1. The longer the sides of an angle are, the larger the angle is. ( )

The decimal point 2. 1.3 is shifted three places to the right, which is 1300. ( )

307,000 kilometers is 7 kilometers. ( )

4.8: 15 is 8 15. ( )

5. 14.090= 14.09。 ( )

Three. Fill in "=" and ">" in ○. Or "

1.0.94 hectares ○4900 square meters

2.506 billion 5.06 billion

3.0.35 Magnification 10 times ○0.35 Decimal point is shifted to the left by two places.

4. Number of days in leap year ○ 1994 days.

Fourth, arrange the following figures in descending order.

1.3.36 3.6 3.56 3.599

2.0.7 0.609 0.6908 0.66

5. Use a simple method to calculate.

1.74×53+47×74 2.2 169–642–358

3.948+ 106 1+52+939 4. 125×64

Six, off-type calculation.

1.375+ 137÷(69+68) 2.2.5+28.6+0.73

3.5.06–(3. 14+0.4) 4.4900–20+ 15× 17

Seven, column calculation.

1. A number minus 7.3 1 equals 14.29. What's this number?

2.2460 minus the product of 52 and 26, how much do you get?

Eight, application questions.

1. A canteen bought a batch of rice, ate 158 Jin, and the remaining 32 Jin was four times less than the amount eaten. How many Jin of rice did you buy in the canteen?

The printing house printed 48 million books in 20 days. Printing tens of thousands of books in 35 days at this rate?

The weather temperature in the week of March and May is 18,19,20,19,21,23,20 respectively. What is the average daily temperature this week?

4. Eggs are packed in 144 boxes, with 504 eggs per box, if there are 648 eggs per box. How many boxes can be vacated in this way?

5. Reclaim triangular wasteland with bottom length 120m and height of 80m. How many hectares of land have been reclaimed?

Reference answer

One,

1.288009 300,000

2.28

3. acute angle

4.54

5.40050

6. 12m

four past seven

Two. 1.╳ 2.√ 3.√ 4.╳ 5.√

Three. 1.= 2.> 3.& gt4.& gt

Fourth,

1.3.6 & gt3.599 >3.56 >3.36

2.0.7 & gt0.6908 & gt0.66 & gt0.609

Five,

1.7400

2. 1 169

3.3000

4.8000

Six,

1.376

2.3 1.83

3. 1.52

4.5 135

Seven,

1.2 1.6

2. 1 108

Eight,

1.758 kg

28.4 million copies

3.20 degrees

4.32 cases

5.0.48 hectares

Beijing normal university printing plate fourth grade mathematics volume II final examination paper II

One, fill it out. I can do it.

1. Students, among the nine planets around the sun, Pluto is the farthest from the sun, with an average distance of about 5.946 billion kilometers. This number is written as (), and the mantissa after omitting 100 million is about () kilometers.

In the number 2.8000808000, the left "8" means (), the middle "8" means (), and the right "8" means ().

3. The two numbers adjacent to 999999 are () and ().

4. For the five-digit port 4238÷354, make the quotient two digits, and the port can be filled in (); For the case that the quotient is three digits, the minimum value in □ can be filled in ().

5. The circumference of a rectangle is 36m, the length is12m, and the area is ().

6. A÷B=88 is known. If A is expanded by 10 times, B is also expanded by 10 times. Their quotient is (); If a is magnified by 10 times and b remains the same, then their quotient is ().

7. Please estimate that the product of 208×385 is about (); The quotient of 9 150÷295 is about ().

8.506 square decimeter = () square centimeter 3 hours 20 minutes = () minutes.

9. Fill in the box with the appropriate symbols.

28579〇9998 8345067〇8354067

128÷8〇( 128÷4)÷(8×4) 300÷ 15〇(300÷3)÷( 15÷3)

10. There are four numbers: 2, 2, 8, 9. Can "+,-,x," and "()" be used to make the formula of 24? The formula is: ().

Second, choose one, me.

1. A number consists of 600 million, 80 million and 403 ones. This number is ().

680000403 B、608000403 C、608004003 D、600804003

2. 1674-x = 499, and the basis for finding x is ().

A, minus = minus-minus B, minus = minus-minus C, addendum = and-another addendum D, addendum+addendum = and.

3. Among the following figures, the closest to 1 100 million is ().

a、 1 1000000 B、98999990 C、 100009888 D、9999888

It takes 6 minutes to cut a piece of wood into 3 pieces, so it takes () minutes to cut it into 5 pieces.

a、 12 B、 10 C、8 D、6

5. Compare the left picture and the right picture, they are ().

A, perimeter and area are not equal b, perimeter and area are equal c, area is equal, perimeter is not equal d, perimeter is equal and area is not equal.

Third, calculate, I am the fastest.

1. Write the number directly.

21× 400 = 2.7 million+6.5 million =125×16× 50 = 2800 ÷ 25 =

3 16+599= 25 ten 97 ten 15 ten 3 = 8650-250 = () ⊙ () =105 ... 6

2. Column vertical calculation. (Check with ※)

15986+5024= 2900×409= ※ 50600÷630=

3. find the unknown number X.

x- 124 1 = 1769 12300÷x = 820 980×x = 6860

4. Calculate with recursive equation. (Do it at your convenience)

( 1) 1000-8×322÷23(2)786-(286- 177)(3)704 X( 120-3250÷65438+)

(4) 48× 52× 52 (5) 32× 125× 25 (6) 999× 100 1

5. List solutions.

(1)236 times the product of 150, minus 1737 1. What's the difference? (2) 154 minus the quotient of 49 divided by 7, and the difference is multiplied by 15. What is the result?

Fourth, with it, I am accurate.

1. The canteen burns 560 kilograms of coal in 7 days. According to this calculation, how many kilograms of coal will be burned in September this year (calculated in 30 days)? (3 ☆)

2. The school basketball team bought eight basketballs with 440 yuan, and later decided to buy the same 24 basketballs because of the development of the players. How much does the school still need to spend? (4 ☆)

3. A train * * * has 14 cars, of which 12 cars are soft seats, each car takes 108 people, and the other two cars are sleepers, each with 80 beds. How many people can this train seat?

4. The buyer of the trading company went to buy Huixi brand laser printers, bought 5 sets in "Xinhuixi Jindian" and paid 4050 yuan; I bought the same printer 12 at the "printing consumables direct selling network" for 6000 yuan. How much cheaper is it to buy a printer online than in a store? (5 ☆)

The playground of a primary school is 70 meters long and 50 meters wide. Now it is planned to expand, with the length increased by 30 meters and the width increased by 20 meters. Please think about it and figure out how many square meters the playground has increased.

Beijing normal university printing plate fourth grade mathematics volume two final examination paper three

Fill in the blanks. (25%)

In 1 and 70.672, 7 in the integer part means () and 7 in the decimal part means ().

2, 248200 changed to "ten thousand" as the unit number is () ten thousand. Rewriting 78.56 million into "one billion" is () billion. (Keep two decimal places)

All the hundreds, tens and percentiles of a number are 6, and all other numbers are 0. This decimal number is written as () and read as ().

4. Move the decimal point 3. 14 by two places to (), and expand it to () times.

5, an isosceles triangle, the top angle is 1 120, and its two bottom angles are ().

6.4, 3, 0 and the decimal point constitute the decimal point (), and the smallest decimal point is ().

7. Multiplicative commutative law () = () is expressed in letters.

Among the four numbers of 8, 0.930, 0.39, 0.903 and 0.309, one is (), and the smallest is ().

9, 6 meters 3 cm = () meters 4.04 square meters = () square decimeter

9.75 tons = () kg 1 ton 500 kg -890 kg = () tons

58 km 7 m = () km 8 m 9 cm -2 m 20 cm = () m.

10, 0.6 1.609 15 yuan, 7.80 yuan, 15.80 yuan.

360 million ○360000000 1.23 tons ○ 1 ton 23 kg.

Second, judge. (Tick "√" in brackets for correctness and "×" for error. )7%

Multiply l, 0 and any number to get 0, and divide 0 by any number to get 0. ( )

2、35×(7×3)=35×7+35×3。 ( )

3. A triangle with three sides of 4cm, 4cm and 8cm is an isosceles triangle. ( )

One thousandth of 4.7.5 is 0.075. ( )

5, 7.05, 7.0599, with one decimal place reserved, all of which are 7.l. ()

6. An isosceles triangle is an equilateral triangle. ( )

7. The broken-line statistical chart can better show the increase or decrease of data. ( )

Third, multiple choice questions. Fill in the brackets with the serial number of the correct answer. )6%

1, two triangles with an acute angle of 600 are ().

A, general triangle B, acute triangle C, obtuse triangle D, equilateral triangle

2, the following formula can be used to simply calculate the laws of multiplication and distribution is ().

a，( 125+90)×8 B，52×25×4 C，7.6+0.25+2.4d，(258+45) × 55

3. The numbers of the two formulas in the following group () are not equal.

A, 25×(200+4) and 25×200+25×4 B, 36×20 1 and 36×200+36.

C, 265× 105—265×5 and 265× (105 15 5) D, 25× 174×4 and 25×4× 174.

4. The numbers that don't read "zero" in the following numbers are () a, 807. 17 B, 270.05 C, 400. 1d, 30 1009.

5. In the figure below, () A, 7055 B, 7.05 C, 70.55 D and 7.550 have the same size, and there is no "0".

6. Between1.1and L.3, there is a () decimal a, 1 1 B, 18 C and countless d's, 19.

Fourth, measure, draw and fill in. (8%)

(1) The telecom building below is 450% of the municipal government.

In the direction, the distance is meters.

The city government deviated from the direction of 300 at the bank.

The distance is meters.

The school is 600 meters east of the municipal government and 800 meters away.

Please mark its location.

The municipal government is 450 northwest of Jia Xiaodong, 200 meters away.

Please indicate the location of small business owners (4%)

Fifth, calculate the base camp. 34%

(1) Numbers are written directly. 10%

(79 x 2 1)÷20 = 0.093 x 100 = 0.7-0.47 = 0. 16 x 3.7 = 900- 178- 122 =

4l×40 = 0.49+0.25 = 2-0.04 = 3.4-4.6-2.9 = 72÷6×(5 1+ 19)= 1

(2) Calculation by simple method. 12% 30 1×79 125×72×4 728×79×272×79

8.59+2.57 X 3.43 X 5.47 49.62 X 27. 17- 19.62 1546 I(546-239)

(3) Calculate with recursive equation. 12% 8.37+5.95 one (6.52+3.44) 14×27 ten 2400÷25

18 ton -9 ton -40 kg-135 ton -6 kg (calculated in decimal) 224+76×42÷28

Sixth, solve the problem. 20%

L, the earth's surface area is 51000000 square kilometers, of which the ocean area is 361000000 square kilometers. How many tens of thousands of square kilometers is the ocean area more than the land area?

2. Buy five bags of rice in two kinds of packages in the school canteen, with small bags of 35kg each and large bags of105kg each. How many kilograms of rice do you buy? How many kilograms is the big bag more than the small one?

Xiaohong takes 7 minutes to get to school by bike every day. She rides 155 meters per minute. Xiaoming walks 2800 meters from school to home every day. Who is closest to school, Xiaohong or Xiaoming? How many meters is it?

Buying four pairs of shoes is as much as buying 16 hats. You can buy three clothes and a hat if you buy six pairs of shoes, 45 yuan. How much does it cost to buy a dress? How much is a dress more expensive than a pair of shoes?