Seeking new and happy winter vacation Quanzhou article sixth grade first volume mathematics all answers ah

Don't write on the second page.

Page 4: Can you calculate?

1/2+ 1/3=6/5 1/2+ 1/4=3/4 1/2+ 1/5=7/ 10 1/2+ 1/6=2/3 1/4+ 1/6=5/ 12

1/3+ 1/4=7/ 12 1/3+ 1/5=8/ 15 1/3+ 1/6= 1/2 1/4+ 1/5=9/20 1/5+ 1/6= 1 1/30

1/2- 1/3= 1/6 1/2- 1/4= 1/2 1/2- 1/5=3/ 10 1/2- 1/6= 1/3 1/3- 1/4= 1/ 12

1/3- 1/5=2/ 15 1/3- 1/6= 1/6 1/4- 1/5= 1/20 1/4- 1/6= 1/ 12 1/5- 1/6= 1/30

Page 6 Tortoise and Rabbit Race

1、 1-80%=20%

2,250 * 20% = 50 (minutes) 3,4x250/50 = 20 (minutes)

A: Rabbits spend 20% of their time as turtles. It takes 20 minutes for the tortoise to run 50 meters per minute.

Divide peaches

100/(5+ 100)=6.6666……

So big monkeys should be divided into more than seven.

Suppose that each big monkey is divided into x and each little monkey is divided into y, and x is greater than or equal to 7.

Then 5x+ 10y= 100 both x+2y=20 xy are positive integers. We can see from the formula that x must be a multiple of 2, and we can get the solution ((8,6) (10,5) (12,4) (14,

From the above point of view,

There are 10 big monkeys and 5 small monkeys.

Page 8 Orchard Anecdotes

1, peach tree 200x4 3= 150 (tree)

Apple tree 200x5 4= 160 (tree)

2. pear tree 16000/5 = 20000 (kg)

Apple tree 20000x6 5= 16667 (kg)

3、20/( 1+25%)

=20/ 1.25

= 16 (ten thousand yuan)

Let's see who is smart enough to choose 3.

10 Appreciation of Spring Festival couplets

1, 3 divided by 7= three-sevenths

2,3 divided by 14= three quarters.

3. Heshun Gate has the word "hundred blessings and peace" worth thousands of dollars. How many words represent quantity? four

How many pairs of happy rich people in their prime have the same words? 2 pairs

Ask yourself questions.

How many words does "beauty" occupy in "Beauty and Beauty Together"? 3/7

Page 12 My schedule

1，40/ 120 = 1 in 3。

2、(2- 1)/2=50%

How much less is it to have a happy summer vacation than to read extracurricular books?

60-40=20 points

Page 14 Let me calculate.

1, 40x 65438+9 00 = 36 (ball)

34x0.85=29 balls

Page 16 I'm so happy to have lucky money.

1、200/(300+200)

=200/500

=40%

2、(250- 150)/250

= 100/250

=40%

Calculate the perimeter and area of the figure below.

1, perimeter 2x2 = 43.14x4 =12.56 (cm) squared 3. 14x2 = 12.56.

2. Circumference 2x3. 14=6.28 Area 2/2 =13.14x1= 3.14.

Page 20 Interesting fuel tank

(1). Answer: The indicator of the fuel tank is 6 liters. If the capacity is calculated according to 8 liters, the remaining 6 liters are 3/4, and the volume ratio and weight ratio are the same, which is 75%.

(2) The unit price of 8 liters in 20 yuan is 5/2 = 2.5× 6 in 2.5 yuan =15 yuan. A: The remaining gasoline is worth 15 yuan.

(3)(8÷8)÷8

= 1÷8

=0. 125

= 12.5% A: this box of gasoline is used up 12.5% on average every day.

(4) Point to 1/2, that is, there is still 50%. Since it is full, it is of course 100%.

The stock on page 22 is amazing.

1, assuming an increase of X%

4. 18 *( 1+X %)= 4. 18+0.42

X= 10

The answer is 10%.

2、20000x 15%

=20000x0. 15

=3000 yuan

3. Earnings per share is 15000÷20000=0.75, which means an increase of 0.75 yuan. Now the price is 0.75+4. 18=4.93.

The transaction amount is 4.93×20000=98600.

The tax is 98600×1.1%=1084.6.

Actual profit15000-1084.6 =13915.4.

I didn't do it on pages 24 and 26.

Page 28, draw it yourself.

The statistics on page 30 are very useful.

1、5 c、6、 1 1、7、6、9

(2) Jinan and Fuzhou

It's not written on page 32

There must be something wrong with these for your reference.