The answer to the first grade math instruction exercise: Wen Wen. /z/q97 104633.htm Question: Not this question: P8 1 to 85 Answer: 1. Multiple choice questions (5 points for each small question, ***30 points): 1, 3 points A, B and B on the known number axis. Then it means () (a) the distance between points A and B (b) the distance between points A and C (c) the sum of the distances from points A and B to the origin (d) the sum of the distances from points A and C to the origin. 2. Wang Laobo first bought five sheep in the market at an average price of one yuan, and later bought three sheep at an average price of one yuan. Later, he bought all the sheep at the price of one sheep. The reason for the loss is that () (A) (B) (C) (D) has nothing to do with the size of 3. The sum of two positive numbers is 60, and their least common multiple is 273, so their product is () (a) 273 (b) 819 (c)165438. Go boating in Hangzhou West Lake for a spring outing. Each boat carries 3 people, and the rent is 16 yuan. Each big ship will take five people, and the rent is 24 yuan. Then it will cost at least () (a) 188 yuan (b) 192 yuan (C)232 yuan (D)240 yuan 5. It is known that the circumference of a triangle is. Then the range of the smallest side of the triangle is () (a) and between (b) and between (c) and between (d) and between 6. Two identical bottles are filled with alcohol solution. The volume ratio of alcohol and water in one bottle is 1, and the volume ratio of alcohol and water in the other bottle is 1. Mix two bottles together. The volume ratio of alcohol to water in the mixed solution is () (A) (B) (C) (D) 2. Fill in the blanks (5 points for each small question, ***30 points): 7. Given,,, and > >, then =; 8, set a polynomial, when known = 0,; At that time, at that time, =; 9. Arrange the positive even numbers into five columns according to the following table: 1 column, second column, third column, fourth column, fifth column, first row 2 4 6 8, second row16141210, first row. Eight minutes later, they met for the fifth time. It is known that Party A walks 0. 1 meter more than Party B every second, so the shortest distance from the place where they met for the fifth time to point A along the runway is meters. 1 1. Someone asked Teacher Yang, "How many students are there in your class?" Teacher Yang said: "Now half of the students in our class are taking part in the math contest, one quarter are taking part in the music interest group, one seventh are in the reading room, and three female students are watching TV." . So the number of students in Teacher Yang's class is; 12. There are two red balls and two white balls in the box. Xiaoling touched the balls out of the box one by one, so the possibility of red balls and white balls appearing alternately (either "red, white and red" or "white, red and white") is. Third, the solution: 13, (10 minute) As shown in the figure, it is known that AB‖ED, ∠ c =, ∠ ABC = ∠ def, ∠ d =, ∠ f =, and ∞. 14, (10) The midline of the waist of an isosceles triangle divides the perimeter of the triangle into two parts: 14 and 18, and finds the length of each side of the triangle. 15 and (10) have nine straight lines on the plane, and no three straight lines intersect at one point. What is the positional relationship of these nine straight lines, so that their intersection point is exactly 26, and all possible situations can be drawn (it is required to draw correctly with a ruler). 16, (10 minute) The three hands of the clock coincide at 12. How many minutes did it take for the second hand to bisect the angle between the minute hand and the hour hand for the first time? (Expressed by scores) Reference answer 1 of 2004 Fuyang Junior 1 Mathematics Competition. Multiple choice questions (5 points for each small question, * * 30 points): BABCAD 2. Fill in the blanks (5 points for each small question, ***30 points): 7,0 or -28,-179,2513 10,176/kloc-0. Solution: 13, solution: extend DC and AB to g∫ed‖ab ∠ D. ∠ BCD = ∠ g+∠ CBG ∴∠ CBG = ∴∠ ABC = Solution: Let the waist length of an isosceles triangle be and the bottom length be, then the solution is: When setting minutes, the second hand bisects the angle between the minute hand and the hour hand for the first time, so the angle of the hour hand is degrees, the angle of the minute hand is degrees, and the angle of the second hand is degrees, so there is: Q: No.
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Do you need all the answers to question 4.3. 1 No multiple choice questions. There is no 6 in the blank, and the answer is 10! (Our teacher didn't call)
5:2
7: 1 1,9
8: 1 14
9. Set the math interest group as X group. 8X+3 = 10X-( 10- 1)
X=6
So there are 8*6+3=5 1 science and technology books.
1 1: suppose there are x individuals producing part a and (28-X) individuals producing part b. ..
2* 12X= 18(28-X)
X= 12
So 28-X= 16
12: let the volume of oil tank be x liters.
X=3/4(X- 1/2+6)+8
X=20
13: suppose this person did the wrong question X.
- 1*X+3(50-5-X)= 103
X=8
14: Suppose Xiaoming's mother bought X kilograms for 56. 1 yuan.
3X+ 1/2X+0. 1 = 56. 1
X= 16
15: Class (1) participated in X, (1) did not participate in (44-X), (2) did not participate in 3X, and (2) participated in (44-3X).
44-3X= 1/4(44-X)
X=8
This is my answer.
You'd better use your head. It's actually quite simple.
Yes, our teacher has already talked about it.
Is it a little late?
I called = =
The first grade mathematics instruction exercises 96 to 97 answers 1. Multiple choice BCCC
Second, fill in the blanks18 km/h2km/h; 24 cans 12 cans; 420,000 yuan and 260,000 yuan
Third, answer questions.
8, A production of 200t, B production of 350t t.
9.5 1 gold medal, 2 1 silver medal and 28 bronze medals.
10, underpaid Xiaojun. Without 4 yuan.
1 1, 15 A, 3 B and 2 C dishes.
12, 2000 yuan for each color TV and 1000 yuan for each washing machine.
Fourth, knowledge expansion.
13，30* 15(b-a)=22500。
30 *( 15+ 10)[( 1-20%)b-a]= 22500。
Finally, a=50 and b= 100.
14, let's assume that the cost of last quarter was X yuan, the price was Y yuan and the sales volume was A.
Y=( 1+ 17.5%) x
(y-x)a =[96y-(x- 10.4)]* 1 10a。
X=400，y=5 10。
The first question: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
Question 2: 9, 8, 7, 6, 5, 4, 3, 2, 1 0,
Question 3: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
Question 4: 9, 8, 7, 6, 5, 4, 3, 2, 1 0,
Like a * * *, there are four questions. I have been studying them all morning. It almost killed me.
Do you have all the answers to the first-year math tutorial exercises? First, multiple-choice questions (5 points for each small question, 30 points for * * *):
1, it is known that three points A, B and C on the number axis represent rational numbers, which are 1 and-1 respectively, so it means ().
(a) the distance between points a and b (b) the distance between points a and c.
(c) Sum of distances from points A and B to the origin (d) Sum of distances from points A and C to the origin.
2. Wang Laobo first bought five sheep in the market, with an average of RMB each, and later bought three sheep, with an average of RMB each.
Later, he sold all the sheep at the price of each sheep, only to find himself losing money. The reason for the loss is ()
(a) (b) (c) and (d) have nothing to do with size.
3. The sum of two positive numbers is 60, and their least common multiple is 273, so their product is ().
273(B)8 19(C) 1 199(D) 19 1 1
4. A class of ***48 people went boating on the West Lake in Hangzhou in the spring, with 3 people per boat, and the rent was 16 yuan, with 5 people per big boat.
People, rent 24 yuan, then this class should at least spend rent ().
(A) 188 yuan (B) 192 yuan (C)232 yuan (D)240 yuan.
5. It is known that the circumference of a triangle is, one side is twice as long as the other, and the range of the smallest side of the triangle is ().
Between (a) and (b) and (c) and between (d) and.
6. Two identical bottles are filled with alcohol solution. The volume ratio of a bottle of wine to water is 1. In another bottle,
The volume ratio of alcohol to water is 1. Mix two bottles of solution together, and the volume ratio of alcohol to water in the mixed solution is.
( )
(A) (B)
(C) (D)
II. Fill in the blanks (5 points for each small question, 30 points for * * *):
7, known,,, and > >, then =;
8, set a polynomial, when known = 0,; When,,
Then when =;
9. Arrange positive and even numbers into 5 columns according to the table below:
Column 1 column 2, column 3, column 4 and column 5
The first line 2 4 6 8
The second line16141210
Line 3 18 20 22 24
The fourth line 32 30 28 26
…… … … … …
According to the rules in the table, even numbers 2004 should be arranged in rows and columns;
10, Party A and Party B set off at the same time with their backs to point A on the 400m circular runway. Eight minutes later, they met for the fifth time.
It is known that A walks 0. 1 m more than B every second. What is the shortest distance along the runway from where they met for the fifth time to point A?
Rice;
1 1. Someone asked Teacher Yang, "How many students are there in your class?" Teacher Yang said: "Now half of the students in our class are taking part in the math contest, one quarter are taking part in the music interest group, one seventh are in the reading room, and three female students are watching TV." . So the number of students in Teacher Yang's class is;
12. There are two red balls and two white balls in the box. Xiaoling touched the balls out of the box one by one, and red balls and white balls alternated.
The possibility of occurrence (which can be "red, white, red and white" or "white, red, white and red") is.
Third, answer questions:
13, (10) as shown in the figure, AB‖ED, ∠ c =, ∠ ABC = ∠ def, ∠ d =, ∠ f =,
Find the size of e.
14, (10 minute) The midline of an isosceles triangle divides the perimeter of the triangle into two parts, 14 and 18, and find three.
The length of each side of an angle.
15 and (10) have nine straight lines on the plane, and no three straight lines intersect at one point. What is the positional relationship of these nine straight lines, so that their intersection point is exactly 26, and all possible situations can be drawn (it is required to draw correctly with a ruler).
16, (10 minute) The three hands of the clock coincide at 12. How many minutes did it take the second hand to set the angle of the minute hand and the hour hand for the first time?
Acute angle) equally divided? (expressed in fractions)
Reference answers to the 2004 Fuyang Junior One Mathematics Competition
First, multiple-choice questions (5 points for each small question, 30 points * * *): BABCAD
II. Fill in the blanks (5 points for each small question, 30 points for * * *):
7,0 or -28,-179, 25 1, 3 10, 176 1 1 2,
Third, answer questions:
13, solution: extend DC and AB to G.
∫ed‖ab，∠D= ∴∠G=
∠∠BCD = =，∠ BCD = ∠ G+∠ CBG ∴∠ CBG =
∴∠ABC= = That is ∠∠ e =
14, solution: let the waist length of an isosceles triangle be and the bottom length be,
So or
Solve:, or,
The lengths of the three sides of a triangle are:,, or 12, 12, 8 respectively.
15, solution: There are two situations, as follows:
16, Solution: Obviously, the second hand bisected the angle between the minute hand and the hour hand for the first time after 1 minute.
When setting minutes, the second hand bisects the angle between the minute hand and the hour hand for the first time, so the angle of the hour hand is degrees, the angle of the minute hand is degrees, and the angle of the second hand is degrees.
So there are:
The exercise questions for math instruction in Grade One are 124 to 126. Answer bcbdcbadaa 3: 568-213:1(5-x)-2x =112-2 or 4: 3: 150x80%. X = 2x = 5m =-3/5 will be 26 1. Ordinary highway driving 1 hour, expressway driving 1.2 hours. K≠ 1 and 0 k= 1 m=4 k= 1 m≠4 are relatively frequent.
The answer to the first grade math instruction exercise 9 1 to 1 13. You'd better do your homework yourself. Don't ask the answer casually. You can improve yourself by thinking step by step. After thinking, you can't go to the learning tool to find the answer. If not, you can directly take photos and upload them to the Rubik's cube operation artifact, and Xueba will answer them!
P 1 17 the answer is woo ~ you are too lazy!
Forget it.
Second lesson
Independent organization
1. Remove the male and female and become an integral equation and then solve it.
2. The speed of the still water boat, the speed of the still water boat, the growth value of the water flow speed, the working efficiency, the working time and the mass concentration of the solution.
Basic self-test
1.x=5
2. Seven thirds
3. Number
4. Fifty-nine x fifteen x = one twelfth
5.d
6.a
7.d
8. Suppose x grams of water is needed, 50+50/x equals 25%, and the solution is x= 150.
I made it myself, didn't I? It's up to you.