Mathematics Exercise of Grade Four of Beijing Normal University Edition (1)
I. Fill in the blanks (25 points)
1, 425? (325-275), the method () should be calculated first, and then the method () should be calculated.
2, 853007600 is () digits, read as (), rounded.
It's about () billion.
3. When two straight lines intersect into (), the two straight lines are said to be perpendicular to each other.
4. Use letters to indicate that the law of multiplication and association is ().
There are 8 red balls and 2 white balls in a bag. It is more likely to touch the () ball than the () ball.
6. In-2,8,0-10+10-7+30, positive numbers have ().
Negative numbers have (), and () is neither positive nor negative.
7. Count 280? 30, you can multiply () by () and add () zeros at the end of the product.
8. When calculating division, for each quotient, the remainder must be less than ().
9. The ID number is 412328197608237527. She has been () months.
Born. The gender is ().
10, speed = () ○ ().
1 1, 3 meters forward is +3 meters, then 6 meters backward is recorded as () meters.
12、 965? The quotient of 32 is () digits.
Second, the judgment (7 points)
1, in the same plane, two disjoint straight lines are called parallel to each other. ( )
2. Look at a 10 with a magnifying glass that magnifies 10? Angle, the degree of angle is 100? . ( )
3. Read three zeros when reading 58500027. ( )
Both straight lines and rays can extend to both ends indefinitely. ( )
5. The longer the side of an angle, the bigger the angle. ( )
6. Divider and divisor are multiplied (or divided) by the same number at the same time, and the quotient remains unchanged. ( )
7. There are only 10 red balls in the pocket. If you touch any one, it must not be a black ball. ( )
Three, multiple choice questions (7 points)
1, you can draw a () straight line after a little while.
A, 1 B, 2 C, countless
2, greater than 90? Less than 180? This kind of horn is called ().
A, acute angle b, obtuse angle c, right angle
3. There is a () line segment in the picture on the left.
A, 6 b, 4 c and 3
4、 -2 ( )-6。
A is greater than b and less than c, equal to
5, the following formula using the law of multiplication and distribution is ().
38？ 10 1=38? 100+38? 1 B、38？ 10 1=38? 100+ 1
6. There are five red balls, two yellow balls and 1 black ball in the box. Feel any of them.
Touching () is the most likely.
A, yellow ball b, red ball c, black ball
7, the following statement is correct ().
a、0？ It means that there is no temperature B, and -3℃ means MINUS 3℃
C, negative numbers are meaningless.
2
1
0 v. calculation
1, write the number directly (6 points)
8 10? 90= 90? 70= 480 ? 80= 80 ? 50=
240? 12= 540 ? 60= 17 ? 50= 960 ? 80=
32? 345? 0= 560? 70= 180? 90= 630 ? 90=
2. Estimate (8 points)
403? 59? 6 18? 79? 2 19? 37? 589? 19?
3, column vertical calculation (8 points)
720? 40= 785? 25= 203? 45 = 436? 76=
4. Simple calculation (10 score)
125? 73? 8 76? 25? 4 346+ 178+254 37? 25+25? 63 700? 25
5, column calculation (6 points)
(3) A number is 128, which is 57 times that of 406. What's this number?
Six, operational problems (4 points)
1. Draw parallel lines and vertical lines of known point A ... 2. Draw the following angles with a protractor.
⑴.40? ⑵. 130?
Seven, solve the problem (13 points)
1. The price of a fairy tale is 25 yuan. Is it enough for Mr. Wang to buy five fairy tales with 100 yuan? (3 points)
2. On Children's Day, 252 teachers and students from the experimental primary school went on a trip, each with 46 seats. How many such cars should we rent at least? (3 points)
The distance between Party A and Party B is 720km. It takes 9 hours for a car to get from A to B. How many kilometers does the car travel per hour on average? (3 points)
Wang Dong is reading a 370-page fairy tale book. If Dong Wang reads 39 pages a day, how many days will it take to finish it? (3 points)
Mathematics Exercises of Grade Four of Beijing Normal University Edition (2)
1. Please read the numbers below.
1345789 19 pronunciation: 376008704 pronunciation:
2030607080 read: 200000004 read:
90990900008 Reading: 57080023040 Reading:
Please write down the following figures.
Three thousand and one spelling: five thousand seven hundred and thirty-four spelling:
4203 writing: 907 writing:
254.678.526.485 Writing:
Writing: x k b 1. chief operating officer
3. Please rewrite the following figures as? Billion? 、? Wan? Number of units.
460,000 = () 92.7 million = () 408 million = () 100 million.
64780000= () million 534728? () 629999? () Ten thousand
690080000? () 89950000? () 4090000=409 ()
Fill in the blanks.
1. From the right, the number () is ten thousand, the number () is one hundred million, and the number () is ten billion.
2. Ten thousand is () thousand, ten million is () million and () ten million is 100 million.
A number consists of six millions, seven tens and eight ones. This number is written as () and pronounced as ().
4, 87.6 million writing (), rounded to 10,000 digits is about ().
5、49( )000? 500,000 yuan, the minimum value () in () should be filled in, and the maximum value () can be filled in.
6, the smallest eight digits is (), minus 1 is (); The largest eight-digit number is (), plus 1 is ().
7. Use three? 0? What about three? 9? The largest six digits in the composition are (), which is pronounced as (). Rounding to ten thousand digits is probably (); The smallest six digits are (), which is pronounced as (). Rounding to ten thousand digits is probably ().
5. fill in ○? & lt？ 、? & gt？ Or? =? . wwW。 x kB 1.c Om
10000○9999 60000○600000 9998○8999 94537○94536
1707380380265438+ ten thousand yuan ○ ○2 10/ten thousand yuan.
50,000 meters, 50,000 meters, 2000 kilograms10 billion10 billion.
Thinking about the problem:
1, a number is 40000 after omitting the mantissa of ten thousand digits, so what can be the maximum and minimum before omitting this number?
2. Use the eleven numbers 0, 0, 0, 1, 2, 3, 4, 5, 6, and ask to read all zeros.
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