26 -6 -64 = 20 -64 = -44
27 + 3 -48 = 30 -48 = - 18
28 + 12 -32 = 40 -32 = 8
29 + 2 1 - 16 = 50 - 16 = 34
30 + 30 + 0 = 60 + 0 = 60
3 1 + 39 + 16 = 70 + 16 = 86
32 + 48 + 32 = 80 + 32 = 1 12
33 + 57 + 48 = 90 + 48 = 138
34 + 66 + 64 = 100 + 64 = 164
35 + 75 + 80 = 1 10 + 80 = 190
36 + 84 + 96 = 120 + 96 = 2 16
37 + 93 + 1 12 = 130 + 1 12 = 242
38 + 102 + 128 = 140 + 128 = 268
39 + 1 1 1 + 144 = 150 + 144 = 294
40 -30 - 140 = 10 - 140 = - 130
4 1 -2 1 - 124 = 20 - 124 = - 104
42 - 12 - 108 = 30 - 108 = -78
43 -3 -92 = 40 -92 = -52
44 + 6 -76 = 50 -76 = -26
45 + 15 -60 = 60 -60 = 0
46 + 24 -44 = 70 -44 = 26
47 + 33 -28 = 80 -28 = 52
48 + 42 - 12 = 90 - 12 = 78
49 + 5 1 + 4 = 100 + 4 = 104
50 + 60 + 20 = 1 10 + 20 = 130
5 1 + 69 + 36 = 120 + 36 = 156
52 + 78 + 52 = 130 + 52 = 182
53 + 87 + 68 = 140 + 68 = 208
54 + 96 + 84 = 150 + 84 = 234
55 -45 -200 = 10 -200 = - 190
56 -36 - 184 = 20 - 184 = - 164
57 -27 - 168 = 30 - 168 = - 138
58 - 18 - 152 = 40 - 152 = - 1 12
59 -9 - 136 = 50 - 136 = -86
60 + 0 - 120 = 60 - 120 = -60
6 1 + 9 - 104 = 70 - 104 = -34
62 + 18 -88 = 80 -88 = -8
63 + 27 -72 = 90 -72 = 18
64 + 36 -56 = 100 -56 = 44
65 + 45 -40 = 1 10 -40 = 70
66 + 54 -24 = 120 -24 = 96
67 + 63 -8 = 130 -8 = 122
68 + 72 + 8 = 140 + 8 = 148
69 + 8 1 + 24 = 150 + 24 = 174
70 -60 -260 = 10 -260 = -250
7 1 -5 1 -244 = 20 -244 = -224
72 -42 -228 = 30 -228 = - 198
73 -33 -2 12 = 40 -2 12 = - 172
74 -24 - 196 = 50 - 196 = - 146
1 1 3^3-5
12 4^2-34%
13 3.25-3 15%
14 7^3+445%
15 12+5268.32-2569
16 123+456-52*8
17 45%+6325
18 1/2+ 1/3+ 1/4
19 789+456-78
20 45%+54%-36%
2. Off-model calculation (simplified to simplified) 12%
6/7+2/ 15+ 1/7+ 13/ 15 19/2 1+5/7-3/ 14
2/3+5/9-2/3+5/9
8/9-( 1/4- 1/9)- 3/4
I. Calculation (60%)
1, calculated orally (14%)
3.5×2= 4.8÷ 1.2= 8-7.5= 1.4×0.5= 1- =
10.5-3.5= 0.6+2.5= 15×0.6= 1÷0.4= + =
4÷20= 1.25×0.8= 0.32× 10= 2.5-2.5×0.4=
2. Calculate as simply as possible (12%)
12.5×3.2×0.25 4.56× 10 1-4.56 (0.2+7.63÷0.7)×0. 1
3. Solve the equation (12%)
0. 12χ+ 1.8×0.9=7.2 (9-5χ)×0.3= 1.02 6.4χ-χ=28+4.4
(Time: 90 minutes, total score: 100)
I. Fill in the blanks (20 points)
1. The largest four digits are () and the smallest five digits are ().
2. The largest three digits consisting of 0, 2 and 5 is ().
3.749 100 is pronounced as (), which is about () million.
4. Thirty-six million writing ().
6.0.89 consists of () 0. 1 and () 0.05438+0
7. The sum of the minuend, subtraction and difference is 24, and the minuend is ().
The number of 8.72 0.0 1 is ().
9.9000 hectares = () square kilometers.
10.3 km2 = () m2.
1 1 .1,000 digits and percentiles are all "9", and the rest are all "0". This number is ().
The score of 12.0.37 is ().
13. The divider is equal to the divisor () quotient.
14. The product of two factors is 96, one of which is 6 and the other is ().
15.499000 is about () million.
160000 The counting unit is ().
Second, the judgment (16 points)
When reading numbers within 1 000000000000, no matter how many are at the end of each level, only one "zero" is read. ()
2. Integer is larger than decimal. ()
3. If one factor remains unchanged, the other factor is enlarged by 10 times, and the product is also enlarged by 10 times. ()
4.80.80 pronunciation: 80.80. ()
5. The product must be greater than the factor. ()
6.4 cents equals 0.48 yuan. ()
The quotient of 7.3700 ÷ 200 is 18 and the remainder is 1. ()
8. To compare the sizes of decimals, compare the integer parts first, and then compare the decimal parts. ()
Iii. Calculation (18)
①8256÷258 ② 107×39 ③32 1× 109
④8897÷3 1 ⑤22 1 19÷2 19 ⑥96×3 15
Four, with a simple method to calculate (18 points)
①728+ 199 ②637-20 1 ③ 16×25
④420÷35 ⑤36×5×4 ⑥720÷8÷9
Five, the application problem (28 points)
1. The price of a table is 2 10 yuan, which is three times the price of a chair. How much is a chair? (list the equations containing unknown x first, and then solve them. )
2. The price of a story book is 18.3 1 yuan, which is more expensive than a popular science book 1.49 yuan. How much is this science book? (list the equations containing unknown x first, and then solve them. )
3. Xinhua Bookstore imports 2800 kinds of literary books, and the number of imported scientific and technological books is less than that of literary books 1.200 times. How many science and technology books have been imported?
There is a rectangular paddy field with a length of 900 meters and a width of 200 meters, and the rice harvest is 97,200 kilograms. How many Jin of rice is harvested per hectare on average?
5. 1500 Jin of peaches were shipped from the orchard, and the number of apples shipped was four times that of peaches. How many kilograms of peaches and apples were transported?
The first semester of the 2006-2007 school year
Fourth grade math final exam questions
(Detection time: 60 minutes)
School class name score
Dear students:
Hello! In order to understand the learning situation of one semester and make faster progress in the future, I believe you can answer it easily and seriously. I wish you good results in the exam!
I. Calculation: 37'
1, calculated orally: 10'
450÷90= 250×80= 75÷ 15= 700+380=
600-320= 96÷8= 36+36= 90×9-9=
15×2×3= 99+ 10 1= 360-90= 200÷4×5=
505÷( )=5 ( )+ 1.8=2 90×( )=0 ( )÷3=2 1
980,000-480,000 = 7.5 billion+6.3 billion = 1600÷40= 50×60=
2. For vertical calculation, check the column with ★: 9'.
4080×50= 305÷6 1= 306×37= ★600÷67=
3. Calculation of parting: 18'
(76×32-2036)÷36 4× 107×25 623÷89×(407- 168)
592÷(7 1-34)+ 16 72×36+36× 128 786÷6 + 136×5
Fill in the blanks:'
1. The average distance from Uranus to the sun is 2870990000 kilometers. This number is pronounced as (), the number in "ten thousand" is (), and the number of digits after omitting "hundred million" is about ().
The average distance from the earth to the sun is149,597,870 kilometers.
This number is written as () ≈ () million ≈ () billion.
3, there are () ten million in one hundred million; The numbers adjacent to 1 100 million are () and ().
4. In the number 839500674, "8" is in the position of (), which means (); The million digits are (), which means (); It consists of () one hundred yuan, () ten yuan, () one hundred yuan, () ten yuan and () yuan.
5. Use four "8" s and three "0" s to form the following numbers:
(1) Read only a number "0" and write ();
(2) Read the number of two "0s" and write ();
(3) Numbers that are not pronounced as "0" are pronounced as ().
6. Arrange the following figures in descending order. 88000 80800 80008 80080
7. Multiply two numbers that are not equal to zero, one of which is multiplied by 5. In order to keep the product constant, another multiplier is needed.
8. In 584÷27, the divisor 27 is regarded as a tester. The highest bit of the quotient is, the quotient is and the remainder is.
9. Fill in "
9999999 1223456 240,000 24× 15× 15× 12 34+66× 30 (34+66 )× 3.
10. If the quotient of 3□2÷36 is a single digit, the maximum number in □ can be filled in (), and the minimum number can be filled in ().
1 1. In a division formula, the dividend is expanded by 10 times, and the divisor is also expanded by 10 times, and the quotient ().
() 7. In the figure, * * * has () groups of parallel lines and () groups of mutually perpendicular line segments.
12, the minimum factor is (), the minimum multiple is (), the maximum factor is (), the number of a number factor is (), and the number of a number multiple is (). For example, the factor of 18 is ().
The multiple of 12 is ().
13. When Xiao Ming calculates a division formula, he takes the divisor 30 as 36, and the calculated quotient is 5. The correct result should be ().
Choose the serial number of the correct answer to fill in the blanks.
2. Among the following figures, () reads zero the most.
a、50005500 B、50500505 C、50055005 D、55005005
4. Among the following figures, () is the closest to 900,000.
a、90 1000 B、900090 C、895000 D、89999
5.() 6. When calculating formula 800÷ 16, it can be converted into
a、800÷ 10÷6 B、800÷8÷2 C、800÷ 12÷4
6, three digits divided by two digits, the quotient may be ().
A, 1 digit b, 2 digits c, 3 digits d, 1 digit or 2 digits.
7. Fold a rectangular piece of paper twice, and the relationship between the folds is ().
A, parallel to each other b, perpendicular to each other c, may be parallel to each other or perpendicular to each other.
8. Ming Ming drew a () that is 2 mm longer than 6 cm. A, line segment b, ray c, straight line
9. The quotient of16 and □72÷67 is two digits. How many ways can I fill in the numbers? a、3 B、4 C、5
Class 1, Grade 4, 10, there are 24 boys and 28 girls. Every four people take part in labor, a * * * will be divided into () groups.
a、24÷4+28 B、24+28÷4 C 、( 24+28)4
There aren't 200, but it's almost there.