The fourth grade of primary school, the second volume of mathematics examination questions one.
Fill in the blanks. (10)
1, according to the 2000 census, there are about 30,750,000 people in Canada. 10.058 billion write ().
2.21660000 = ()1020000000 = () billion.
3、 1996034? () 6048909000? () Billion
4. Use positive and negative numbers to indicate the following temperatures.
MINUS 18. Nine degrees above zero centigrade. c()
5, forward 800 meters is +800 meters, backward 68 meters is ().
6. What can I fill in ()?
59? ()& lt48 1 42? ()& lt245
7. A number consists of five tens of millions, six hundreds of thousands, eight thousands and three ones. This number is ().
8、 □58? 46. If the quotient is one digit, you can fill in () in □, and if the quotient is two digits, you can fill in () in □.
9. After a while, you can draw a straight line. You can draw a straight line after two o'clock.
10, 1 fillet = () flat angle = () right angle = () degrees.
Second, judge. Enter it correctly in brackets? , wrong number? . (5 points)
1, the quotient of three digits divided by two digits must be two digits, ()
2、 25? (6? 8)=25? 8+25? 6 ( )
3. obtuse angles can only be divided into right angles and acute angles. ( )
The hour hand and the minute hand make a 90-degree angle on the clock face, which may be 3 o'clock and 9 o'clock. ( )
The mantissa of 5.30 15800 is about 3.02 million after omitting ten thousand digits. ( )
Third, choose the correct answer to fill in the blanks. (10)
1. In the underlined numbers below, () is the exact number.
A, Xiaojun height 140cm. B, there are about 600 thousand people in our city.
C this tree is about 10 meter high, and the library has about 170000 books.
2. There are () corners in the picture on the right.
a、3 B、4 C、5 D、6
3. You can fill in the number () in □ to make 565□350? 5.66 million.
a、5 B、4 C、2 D、3
The following figures are read-only. The number with zero is ().
a、3206600 B、40800507 C、60907200 D、40 103506
5, □=25, if? Expand 10 times to keep the quotient unchanged, □ should be ()
A, unchanged b, expanded 10 times c, and reduced 10 times d, which can't be judged.
Fourth, calculation. (24 points)
1, column vertical calculation and checking calculation.
928? 28=
8 12? 58=
406? 25=
372? 45=
2. Use a simple method to calculate.
72? 102
42? 98+2? Forty two.
25? Forty-four
400? 25
3. Off-mold calculation.
350? [( 120? 60)? 15]
480? (40+40)? 2
936? [6? ( 18? 5)]
( 1230+270)? 30? 26
Sixth, operational issues. (10)
Draw a parallel line with three sides passing through point A and a vertical line with two sides passing through point B.
Answer? b？
Seven, solve the problem. (22 points)
1, Xinwei Kindergarten bought 334 kilograms of watermelons, eating an average of 48 kilograms a day. How many days can these watermelons last?
2. The price of each football in the sporting goods store is 58 yuan. Teacher Wang took 500 yuan. Is it enough to buy nine footballs? How many footballs can Miss Wang buy at most? How much is left?
3. The store shipped 1 12 boxes of soap, 25 pieces each, and each piece of 4 yuan. How much can these soaps sell for?
4. The school organized 174 students to travel to Xiling Snow Mountain. There are two kinds of cars to choose from: the big car is limited to 48 people and the small car is limited to 26 people. Please design several car dispatching schemes. And say which scheme is more reasonable?
Math test questions 2 in the fourth grade of primary school.
I can calculate: (***37 points)
1, directly written number: (per question 1, 12)
400? 70=
320? 40=
15? 60=
640? 80? 4=
634? 70=
25? 40=
2. Longitudinal calculation: (2 points for each question, 10)
507? 46=
265? 68=
840? 35=
762? 19=
.3. Recursive equation calculation: (3 points and 9 points for each question) X k B 1. chief operating officer
( 160-48? 12)? four
336? [(36-29)? 6]
62? (300- 145? 5)
4. Column calculation (3 points and 6 points for each small question)
(1) What number contains 85 320s?
(2) How many times is 884?
Second, I'll fill it out. (2 points for each question, *** 16 points)
The highest digit of 1.80040920 is (), which is pronounced as ().
2. A seven-digit number, the unit is 1, the thousand digits are 2, the million digits are 9, the million digits are 4, and the rest digits are 0. This number is written as (), and rounded to ten thousand digits is about ().
3.3 billion 205.070 1, in writing. Change to? Billion? As a unit, write.
4.84? The product of 390 is a digit.
5.(480? 10)? ( 120? ) = 4 You can fill in ().
Third, I will choose. (65438+ 0 points for each question, ***6 points. )
1. One of the following three numbers is zero: ()
a、90000900 B、90090000 C
2, to do 8 4 18? 80,000 yuan, you can't fill it in ()
a、5 B、3 C、2 D、 1
3. Among the following four figures, the one closest to 80,000 is: ()
a、80 10 1 B、79989 C、79899 D、79979
4. Among the following lines, () is a straight line, () is a ray and () is a line segment.
A, B, C, D,
5. The highway from Beijing to Tianjin is120km long. It takes two hours for the truck to travel, and the speed of the truck is ().
A, 60 hours b, 60 kilometers per minute c, 60 kilometers per hour d, 240 kilometers per hour
Fourth, I will judge. That's right. Fight? , wrong number? . (2 points for each question, *** 10. )
1. The temperature on a certain day in Beijing is -8℃ ~ 8℃, and the highest and lowest temperatures on that day are the same. ( )
2. After a little, you can only draw straight lines. ( )
3. In multiplication, both factors are expanded by 10 times, and the product is also expanded by 10 times. ( )
4, to do □345? The quotient of 45 is a two-digit number, and you can fill in 3□ at most. ( )
There are countless rays in the light of flashlight. ( )
5. I can draw. (1 question 6, question 2 4, *** 10. )
Please draw an angle of 60 degrees with a protractor.
Six, I'll solve the problem. (2 1)
1. Xiaolin's orchard harvested 3 10 Jin of pears this year, and the apples harvested were 19 times that of pears. About how many kilograms of apples were collected? (4 points)
2. 6 yuan per kilogram of apples and 3 yuan per kilogram of pears. Mother bought 4 kilograms of apples. How many Jin of pears can mom buy for the same money? (4 points)
3.5 boxes of bees can brew 375 kilograms of honey a year. Kobayashi keeps 12 boxes of such bees. How many Jin of honey can he brew a year? (4 points)
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