Sixth grade winter vacation Book 1 New Time and Space (Mathematics) Answer

P4: "*" stands for division symbol, and "#" stands for multiplication symbol.

Fill in the appropriate numbers in the box:

5*2/3=(5#3/2)*(2/3#3/2)=5*3/2= 15/2

2/7*9/ 14=(2/7# 14/9)*(9/ 14# 14/9)=2/7# 14/9=4/9

1/2*3/5=( 1/2#5/3)* 1= 1/2#5/3=5/6

Simplified ratio:

3.5 ratio 1.5 = 7 to 3

4 to 0. 16=25 to 1

0. 12 to 3/5= 1 to 5

10.4 to 7.2= 13 to 9

0.6 to 2/9=27 to 10

9/7 to 0. 18=50 to 7

P5:

Look at the picture to find the relationship:

28:4 2 14 7

14:2 7

4:2

Solve the problem:

2. (Music) (50) (Calligraphy) (27)(46)%

3.(9 to 16)(5 to 7)

P6:

Read and copy.

Goose-Goose Teeth-Teeth Look-Book Sun Running Planes-Plants

Train-rain driver-where is the river-here.

P 10:

Simplified ratio:

0.27 to 0.36=3 to 4

12 is 144= 1 yes 12.

One fifth to five/18= 162 to 25.

The three half ratios are 0. 14=25 to 1.

Fill in the box.

1. ratio B= 13 ratio 20

2.a to B=9 to 8

3. The ratio of salt to water is 1 to 19.

4.a to B=5 to 6

5.a to B =7 to 4= 175 to 100.

P 1 1:

Solve the problem.

1.(9)( 160)( 1)( 1 15)

2.( 1 1)

3.( 145)

Area ratio of Party A and Party B: 1 to 2 1.

P 12:

Read one by one.

14 22 3 1 45 56 63

Read and fill in the blanks.

Hobbies 2. Newspapers 3. Cinema 4. Hospital 5. Singer 6. Subway.

P 16:

Find the ratio.

2.5 to 0.5=5.

0.8 to 0.5=8/5

780kg is 39/ 100t =2.

0.22 to 0.33=2/3

39/9 1=39/9 1

0. 12 to 2/3=9/50

P 17:

Solve the problem.

There are 32 people in the first group, 48 people in the second group and 60 people in the third group.

P 18:

Connect.

12 2 1 35 43 54

Choose and answer the sentences.

1.C 2。 C 3。 C 4 explosive C

P22:

For the record, I won't report the calculation results. Do it yourself )

Fill in the blanks.

1.(37.5)(40)

2. (Current price) (Original price) (90)(50)

3.(35)( 13 to 7)

Solve the problem.

1.50

2. 16

P23:

Find the circumference of a circle.

35.12cm

Fill in the blanks.

1.(4)(3)(4/3) (multiplied by 5)

2.( 1 1)(4)( 12)(5.5)(275)

3.(3)(5)(5)(8)(60)

4.(23)(5)

5.(6)(4)

P24:

Wrong, wrong, wrong, right.

P28:

select

Fill in the blanks according to the rules.

1.(0.5)(3/7)(37.5%) Law: All molecules are three.

2.(6/5)(60%)( 1.3) Rule: Two numbers are a group and the sum is 1.9.

3. (40%) (1.4) (33/20) (190%) Law: molecule plus 5.

P29:

1. (translation 4)

2. (Rotate 90 degrees counterclockwise) 9 (Translate 3 to the right)

Solve the problem.

1.36

2. 15

P30:

1. Error 2. Error 3. Right 4. Error 5. Error 6. wrong

Choose the right word.

2 1 1 1 1 1 12

1. calculation.

(1) The sum of numbers A and B plus number A is 220, and number B is 170. Find the sum of numbers a and B.

(2) When calculating the division with the remainder, Xiao Ming mistyped the dividend 1 15 as 15 1, and the quotient of the result was 3 larger than the correct result, but the remainder was exactly the same. Write this division formula.

2. Fill in the blanks.

(1) Fill in the appropriate numbers in the following () so that the average of the three numbers is 140.

( ),( )8,( )27

(2) Fill in the numbers 5, 20, 45, 80, 125, _ _ _ _ _ _ _ _ _, 245.

3. Each layer of the ladder diagram consists of black and white squares, and both ends of each layer are black squares (as shown in the figure). What is the number of white squares on the 2000th floor?

4. In a parking lot, 48 cars and motorcycles were parked, including 4 wheels for each car and 3 wheels for each motorcycle. These cars have 65,438+072 wheels. Q: How many cars are there in the parking lot?

5. Give 100 apples to 10 children, and the number of apples per child is different. The child who gets the most apples will get at least a few apples.

6. The bookshelf has three floors, A, B and C, and there are 192 books in it. First, take out as many books as B from A and put them in B, then take out as many books as C from B and put them in C. Finally, take out as many books as A from C and put them in A. At this time, there are as many books in A, B and C.

7. There are 10 chicken farms in a township, and the number of chickens in each chicken farm is different, ranging from 1 10,000. Coincidentally, the sum of the numbers of each chicken farm is equal to 34. How many chickens are raised in this 10 chicken farm?

8. What is the first number on the left of line 100 in the table below?

5 4 3 2

6 7 8 9

13 12 1 1 10

14 15 16 17

2 1 20 19 18

_______________________________________

9. Two children walk against the escalator. Boys can walk three steps per second and girls can walk two steps per second. As a result, from one end of the escalator to the other, the boy walked for 65,438+000 seconds and the girl walked for 300 seconds. How many levels are there in the escalator?

10. There is a five-digit odd number. All two in this five-digit odd number become five, and all five also become two, and the other numbers remain unchanged, thus getting a new five-digit number. If half of the new five digits are larger than the original five digits 1, what is the original five digits?

The answer to the first question

1.( 1) The sum of numbers A and B plus the number A is 220, and the number B is 170. Find the sum of numbers a and B.

According to the meaning of the question

2 A +2 B =220 ( 1)

A +2 B = 170 (2)

(1) Formula +(2)

3 A +3 B =390

Therefore, the sum of numbers a and b is

390? = 130

Because the quotient is increased by 3, the divisor can be found.

( 15 1- 1 15)? =36?

= 12

Therefore, the required division type is:

1 15? 2=9……7

(1) Fill in the appropriate numbers in the following () so that the average of the three numbers is 140.

(5),(8)8,(3)27

The average value of three numbers is 140, so the sum of three numbers:

140? =420

The third number should be 327.

420-327=93

Obviously, the first number is 5 and the second number is 88.

(2) Fill in the figures according to the law

5,20,45,80, 125, 180,245.

20=5+ 15

45=20+25

80=45+35

125=80+45

So the next number should be:

125+55= 180

According to the graph, the number of white squares on each floor is equal to the number of floors minus 1, so there should be 1999 white squares on the 2000th floor.

Suppose 48 cars are all cars.

The number of wheels should be

48? = 192

Therefore, the number of motorcycles is

(48? - 172)? 4- 1)

=20 (vehicles)

There are 48-20=28 cars.

5. Give 100 apples to 10 children, and the number of apples per child is different. The child who gets the most apples will get at least a few apples.

Everyone's number of apples should be as close as possible. 10 The child gets 1, 2,3 3... 10/0 apples, and the remaining apples are divided by 10.

[ 100-( 1+2+3+……+ 10)]? 0

=45? 0=4……5

Therefore, each child adds four more apples, and the last five children add 1 apple each. 10 The number of apples for children should be:

5,6,7,8,9, 1 1, 12, 13, 14, 15.

So the children who get the most apples are at least 15.

List, using backward method (bottom-up)

first

second

The third/third in ten days' work

Initial state

Fifty-six

After giving a to B.

1 12

After b is given to C.

After giving c to a

The original works of Grade A, B and C are 88, 56 and 48 respectively.

The sum of all digits is 34, and the number less than 10000 can only be four digits.

Therefore, the number of chickens raised in each chicken farm is a four-digit number that can only be composed of 9, 9, 9, 7 or 9, 9, 8 and 8. According to the meaning of the question, the number of 10 is:

7997,9799,9979,9997,8899,8989,8998,9889,9898,9988.

Their total is: 94435 (only).

8. What is the first number on the left of line 100 in the table below?

5 4 3 2

6 7 8 9

13 12 1 1 10

14 15 16 17

2 1 20 19 18

__________________________________________________

Because there are 4 numbers in each line, the first 99 lines * * * have:

99? =396 (pieces)

And because the smallest number at the beginning of this table is 2, according to the arrangement law of the series, the number of 1 on the left of the 100 line is:

396+ 1+ 1=398

The boy left in 100 seconds.

3? 00=300 (level)

The girl left after 300 seconds.

2? 00=600 (level)

Explain that the escalator is running every second.

(600-300)? 300- 100)

= 1.5 (horizontal)

So the escalator has been * * *

(3- 1.5)? 00= 150 (level)

10. There is a five-digit odd number. All two of this five-digit odd number become five, and all five become two, leaving the other numbers unchanged, thus getting a new five-digit number. If half of the new five digits are larger than the original five digits 1, what is the original five digits?

First of all, the tens of thousands of digits of the original number is obviously 2, and the tens of thousands of digits of the new number can only be 5.

Secondly, the thousand digits of the original number must be greater than 4, otherwise it will not be carried when multiplied by 2, and the hundred digits will be multiplied by 2 until 1 to the thousand digits, so that the thousand digits can only be 9.

By analogy, the first four digits of the original number are 2, 9, 9 and 9.

The other number can only be odd. After inspection, the original digit is 5.

So the original five-digit odd number is 29995.

When a lone sail comes from a sunny place

The first question on page 50

The door of the poor family-(cold door)

What you did was inappropriate-(side door)

Flexible method-(trick)

Very attractive thing-(heat)

Something that goes unnoticed or out of date-(unpopular)

I won't meet the guests, I have the intention to thank them-(behind closed doors)

Go to the door and ask for advice humbly-(go to the door)

Metaphor is very expert-(specialized)

The door of the powerful-(giants)

The Gate of the Temple-The Gate of the Mountain, the first question on page 62, choose by yourself.

Spring in poetry

1. In the spring morning, I woke up easily, and birds were singing everywhere. (Meng Haoran: "Spring Dawn")

2. But how much affection does it have for an inch of grass to get three spring rays? (Meng Jiao: "Wanderer")

When those red berries come in spring, they flush on your southern branches. (Wang Wei: Acacia)

4. Good rain knows the season, when spring comes. (Du Fu: "Delighting in Rain on a Spring Night")

Wildfire never completely devoured them, but they grew taller again in the spring breeze. (Bai Juyi: (Farewell to ancient grass))

6. Plant a millet in spring and harvest 10,000 seeds in autumn. (Li Shen: "Farmers")

Although a country is divided, mountains and rivers remain forever, and the spring of trees and grass is back. (Du Fu: Hope in Spring)

8. Falling red is not heartless, but turning into spring mud will protect the flowers. (Gong Zizhen: (Ji Hai's chores))

9. I wonder who cut the thin leaves. The spring breeze in February is like scissors. (He Zhangzhi: "Liu Yong")

10. Spring Garden can't be closed. (Ye Shaoweng: "Not worth going to the park")

Summer in Poetry

1. I don't know about the heat, but I regret the long summer. (Bai Juyi: "Looking at Wheat Cutting")

Living in the depths of the city, it is still clear in spring and summer. (Li Shangyin: (Yat Sen Qing))

The first summer was peaceful, and the grass didn't rest. (Xie Lingyun: (Swim Stanley into the Sailing Sea ")

4. The bitter nights in midsummer are short, and the entrance is cool. (Du Fu: "Summer Night Sigh")

5. Farmer Fang Xia Yun, I dare to eat if I can't sit still. (Dai Fugu: "Hot")

6. Everyone is bitter and hot, and I love long summer days. (Li Ang: "Xia Lian")

7. Remnants gather in summer, and new rain brings autumn haze. (Cen Can: "Shuige sent Wang Huaying Shaofu back to the county")

8. Even if it rains, I don't know if spring will go. I feel that it will clear up before summer is deep. (Fan Chengda: "Xiqing")

9. Qingjiang River embraces the village stream, and everything in Changxiajiang Village is quiet. (Du Fu: "Jiangcun")

10. Why do you hate wheatgrass when she is gone? Xia Muyang and Yin are just cute. (Qin Guan: "March is a dark day")

Mid-Autumn Festival

1. The autumn wind is bleak and the waves are rough. (Cao Cao: Looking at the sea)

If you drop three autumn leaves, you can blossom in February. (Li Qiao: "Wind")

Plant a millet in spring and harvest 10 thousand seeds in autumn. (Li Shen: "Farmers")

4. I am often afraid that the autumn festival will come and the yellow leaves will wither. ("Han Yuefu? Long song ")

5. The window contains autumn snow in Xiling, and it is at the gate of Wu Dong Wan Li boating. (Du Fu: "Jueju")

6. The lake and the moon set each other off, and there is no wind mirror on the pool surface. (Liu Yuxi: "Looking at Dongting")

7. Autumn has been sad and lonely since ancient times. I say autumn is better than spring. (Liu Yuxi: "Autumn Ci")

8. Qiu Guang drew a cold screen with a silver candle and waved a small fan to drive away fireflies. (Du Mu: Autumn Night)

9. When is the spring flower and autumn moon, and how much is known about the past. (Li Jue: "Yu Meiren")

10. I want to say that I am still resting, but I say it is a cool autumn. (Xin Qiji: "Ugly Slave? Shuboshan Road ")

Winter in Poetry

1. For example, this winter, it will be held in the west of the city. ("Du Fu: Military Vehicle Shop")

2. The autumn moon is covered with clouds, and the winter ridge is cold and pine. (Tao Yuanming: Four Seasons)

3. The neighbors in the south are even more unforgettable, and the winter cloth has not been redeemed. (Lu You: The Storm on October 28th)

4. Make haste in winter tonight, and get older tomorrow. (Dong Sigong: "Shou Sui")

5. Sing autumn wind, buy wine and fly winter snow. (Wang Wei: "Four Qi Poems")

When the severe winter came, all the flowers disappeared. (Chen Yi: "Mei")

7. I don't know if the spraying has started recently, but it is suspected that it has not been sold after the winter snow. (Zhang Wei: "Early Plum")

8. Children learn to be neighbors in winter, ignorant but precious. (Lu You: Autumn in the Suburb)

9. Every winter on the solstice in Handan, I am accompanied by a hug lamp. (Bai Juyi: Homesickness from Winter to Day and Night)

10. The weather and personnel are urging each other. The winter solstice is sunny and spring is coming again. (Du Fu: The second question on page 86 of "Little to"

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