Unit 2 Test Paper Title 1 in Volume 2 of Grade Four Mathematics, fill in the blanks. (45 points)
1.0000-level contains four digits (), (), (); Billions are counted in (), (), ().
2. 10 Ten million is (), and one million includes () ten thousand.
3. A number from the right, the fifth digit is (), and the counting unit is (); The eighth place is (), and the counting unit is ().
4.780 10060 consists of () ten, 8 (), () ten and () ten.
The highest bit of 5.3003003 is () bit, the left 3 means (), the middle 3 means (), and the right 3 means ().
6. The number of 1 more than 49999 is (), and the number of 1 more than 49999 is ().
7. Replace 1280000000 with? Wan? The number of units is (), and then change it to use? Billion? The number of units is ().
8. A number consists of three tens of millions, four hundreds of thousands, nine thousands and two ones. This number is written as ().
9.15060400000 Write (), which is a number (), its highest digit is (), and the mantissa after omitting ten thousand digits is ().
10.0, 1, 5, 6 and 8, the largest five digits are (), and the smallest five digits are ().
1 1. The number of 1 less than the smallest 8 digits is (), and the number of 1 more than the largest 5 digits is ().
12. The number of the highest digit among the ten million digits is (), where the maximum number is () and the minimum number is ().
13. In the numerical sequence table, there are () bits to the right of one million bits, () bits to the left of one hundred million bits and () bits to the right of one hundred thousand bits.
14. Use rounding method 6□7890000? 600 million, □ can be filled in (), and the maximum can be filled in ().
15. The approximate value of a number is 60,000, so the maximum number is () and the minimum number is ().
16. Xiaoli lives at the 3rd floor, Gate 5, Building 8, Happiness Community 1. Her house number is XF080503 1, and Beibei also lives in a happy community. The house number is xf110165438.
17. Uncle Wang's ID number is 6102031970011? Uncle Wang was born on () in ().
Second, choose. (6 points)
1. Rewrite a number and put it into use? Wan? Number of units, which is compared with the original number ().
A. it's getting bigger and bigger. B.it's getting smaller. C. No change
2. The number closest to 3.24 million is ().
a . 324300 1 b . 324000 1 c . 3240 1 10
Add () 0 after 85, and the number is 85 million.
A.4 B.5 C.6
4. One million and one million places are dozens of times that of ().
100000.
5. When reading the number 50800304 ().
A. read only one zero B. read only two zeros C. read only three zeros
In 6.782435 >78□435, □ can be filled in ().
1
Third, the judge. (7 points)
1. To write a number with two levels, first write 10,000 levels, and then write one level. ( )
2. Comparing the two figures, the higher the figure at the top, the higher the figure. ( )
3.7 □ 213.54 million? 70.2 billion yuan, the lowest in the box can be 1. ()
4. 10 ten thousand equals 1000 one thousand. ( )
5. The smallest five digits are more than the largest four digits 1. ()
6. A number is 7 15 at ten thousand levels and 0 at each level. This number is pronounced as 7150,000. (
7. Approximate value is greater than exact value. ( )
Fourth, read the numbers below. (4 points)
720000 Pronunciation: ()
38440 1000 Pronunciation: ()
405007020 Read: ()
The pronunciation of 27000340 is: ()
5. Write down the following figures. (4 points)
900,700 Writing: ()
235093200 Write: ()
8240 1003 wrote: ()
Write 502,000 yuan: ()
6. Write the number as required. (9 points)
1. Use? Wan? Or? Billion? Make a unit representation.
40070000000 = () 27600000000= () billion.
1536 10000= () ten thousand
2. Omit? Trillion? After the mantissa, find the approximate number.
20567920000? () 9648 1? () 40 18000000? () 276 million? () 4005400? () 14980? () Ten thousand
7. What can I fill in? (3 points)
4□400? 40 thousand 39□000? 400,000 35□860? 360,000
8. Fill in the figures adjacent to the following figures. (4 points)
1.( ), 100000,( ) 2.( ),4870,(
3.( ),26500,( ) 4.( ),34999,(
Nine, fill in the figures as required. (3 points)
Three, seven, nine and four zeros make up a seven-digit number.
1. The number that does not read zero is ();
2. The number of read-only zeros is ();
3. The number that reads two zeros is ()
X. comparison.
1. The land area of China is about 9.6 million km2, and that of Russian is about.
17 100000km2, the land area of Canada is about 9980000km2, which is the largest? Who has the smallest area? (3 points)
2. Fill in ○? & gt？ 、? & lt？ Or? =? . (6 points)
520,400,520,000 Minimum six digits ○100000 39999+1.40000-1.63082 ○ 60832 ○ 49805089 967502Maximum eight digits ○.
3. Arrange the following figures in descending order. (5 points)
3500760 1 1302400 4002 190 980998 3500670
()& lt()& lt()& lt()& lt( )
The answers to the second unit of mathematics in the second volume of the fourth grade:1.100000,100000,100000,100000; Billion, billion, billion, billion.
2. 1 100 million, 100
3. Ten thousand,10000; Ten million, 10000000
4.7 million, 1, 6
5. Million, Three Million, Three Thousand, Three 1
6.50000,59999
765,438+0,280,000,654,38+0,280,000.
8.30409002
9.150604000,900 million, 150600.
10.865 10, 10568
1 1.9999999, 100000
12. VIII, 9999999, 1000000
13000, billion
14.0、 1、2、3、4; four
15.64999,55000
16. 1 1 10 1 1 1
17. 1970 1 10
Second, CBCBCB
Third,?
Four, seven hundred and twenty thousand;
Three hundred and eighty-four million four hundred and one thousand;
405,070,200;
27.34 million
Verb (abbreviation of verb) 900700; 235009320; 8240 1003; 500002000
6.1.4007 million; 27.6 billion; 1536 1 ten thousand
220.6 million; 65438+ million; 654.38+0 billion; 2.8 billion; 40 1 ten thousand; 1 ten thousand
Seven. 4 9 9
8. 1.99999,10001; 2.4869,487 1
3.26499,2650 1; 4.34998,35000
9./kloc-0 1.3790000；; 2.3700900; 3.3070900 (the answer is not unique)
X. 1. Russia is the largest and Canada is the smallest.
2.& gt； =; & gt； & gt； & gt； & gt