Primary 5 Upgraded Math Synchronous Practice 61 pages of homework

1) Solution: Through calculation, it can be obtained: 1000-500 = 500 (10,000 yuan) 1500-1000 = 500 (10,000 yuan) 2000-1500 = 500 (10,000 yuan) The first factory has increased by 5 million yuan every year, so it is not difficult to deduce that the output value of the first factory in 2009 is 2000 + 500 = 2500 (10,000 yuan) The second factory can be obtained by the same reason

625-500 = 125 (10,000 yuan) 1000-625 = 125 (10,000 yuan) 1125-1000 = 125 (10,000 yuan) Therefore, the output value in 2009 is 1125 + 125 = 1250 (10,000 yuan).

Answer: The output value of the first factory in 2009 was 25 million yuan, and the output value of the second factory in 2009 was 12.5 million yuan.

2) Answer: The comparison shows that the benefits of the first plant are better than those of the second factory. The reasons for the analysis are: there are few technical personnel in the second factory, and there are too many management personnel and service personnel. Countermeasures: appropriately increase technical personnel and reduce management personnel and service personnel.

The statistics of the number of various types of personnel and the growth of industrial output value in the first and second factories of a group are as follows.

Statistics on the number of various personnel in the first and second factories of a group: (unit: person).

Plant 1; Workers: 800; Technicians: 200; Managers: 100; Orderly: 200

Plant 2; Workers: 1000; Technicians: 100; Managers: 150; Orderly: 300

Statistics on the growth of industrial output value of the first and second factories under a group: (unit: 10,000 yuan).

2004-2008 (05 06 years none)].

Plant 1; 2004: 500; Between 2004-2007: 1000; 2007: 1500; 2008: 2000

Plant 2; 2004: 500; Between 2004-2007: 625; 2007: 1000; 2008: 1125

Q: (1) According to this trend of output value growth, the output value of the first and second factories in 2009.

2) Which factory has good benefits? Refer to the upper and lower tables to help the general manager of the group analyze the reasons and find countermeasures. The first to have a chance to be !!

Uhuhh

3.Write the number as required.

4.Hit right or wrong.

5.Hit right or wrong.

6.Composite numbers are written as prime numbers.

Example: 33 3 11 9 3 3

7.(1) Can 2007 be divided into the sum of two prime numbers? Why?

Answer: No, because 2007 is an odd number, even number + odd number, since even numbers are prime numbers, only 2, 2 + 2005 2007, and 2005 is not a prime number, but a composite number.

2) a, b, c, d are different prime numbers, known a+b+c d, find the minimum value of a, b, c d.

a＝3b＝5

c＝11d＝19

So the minimum value of ab c d is 3 5 11 19 3135

(1) Take 1 30 per day, and the dosage is 4 5 grams.

2) Take 1 60 per day, the dosage is 2 5 grams.

3) Take 1 20 per day, the dosage is 6 5 grams.

(1) 2 divided by 60 24 divided by 60 2

2 1 divided by 60 24 divided by 60 1

3 3 divided by 60 24 60 3

It's best to tell us the subject.

360x1/2 = 180kg

360x1/3 = 120kg

180+120=300kg

360-300=60kg

Page 41 Question 9?

= 14 + 3/4

56/4 + 3/4

59 out of 4

Solution: There are x people after the first group.

108+x=（140-x）3

108+x=420-3x

4x=312÷4

x=78A: 78 people need to be transferred from the second group.

Solution 1; Equation Method:

Solution: Set; X people need to be transferred from the second group.

108+x=（140-x)×3

108+x=420-3x

4x=312÷4

x=78A: 78 people need to be transferred from the second group.

Solution 2: Arithmetic'

Because; No matter how it is adjusted, the total number of people has not changed, after the transfer, the number of people in the first group is 3 times that of the second group, the first group can be regarded as 1 share, and the total number of people is 1 + 3 = 4 shares.

Total number of people: 108 + 140 = 248 people.

Number of people per serving: 248 4 = 62.

Number of people transferred from the second group: 140-62 = 78 people.

There are a total of 108 + 140 = 248 people in the two groups.

Because the number of people in the first group is three times that of the second group, the total number of people in the two groups is four times that of the second group.

So the number of people in the second group later was 248 4 = 62 people.

So from the second group 140-62 = 78 people.

78 people need to be transferred from the first and second groups, and the formula is 140-=78

Hello :

After pouring the water, make the clear water depth as:

5 (2 2) dm).

The depth of the water after putting the stones: pure enlightenment.

15 cm dm)

The volume of the stone is:

2 2 (cubic decimeter).

You use 120 yuan, and the supermarket also gives you a 10 yuan teacup and a 20 yuan shopping coupon, which is equivalent to the supermarket giving you 30 yuan.

At first, I bought something for 120 yuan, and then I gave 30 yuan, which is equivalent to buying something for 150 yuan.

But it only took 120 yuan to buy these things, so a few discounts If the formula is as long as the calculation is A: It is equivalent to enjoying a 20% discount.

120-10-20 = 90 yuan (I spent 120 yuan, 10 yuan was returned, 20 yuan is equivalent to 90 yuan I spent).

90 120 = 75% off (with the original price of the actual spend = discount).

Answer: It is equivalent to enjoying a 75% discount.

You see! A teacup worth 10 yuan plus a 20 yuan shopping coupon is 30 yuan, you buy 120 yuan of milk powder, 30 yuan cheaper, 30 divided by 120 is one-fourth! 1 minus 1/4 is equal to 3/4, which is folding!

We're here to check it out! 120 equals 90!

10 + 20 = 30 (yuan).

1-25% = 75% off.

A: Enjoy a 75% discount.

10 + 20 + 120 = 150 120 150 = 80% off So enjoy a 20% discount.

You name the title, I don't have the book.

Solution: (.)

72 (kmh).

Answer: This spine is a car cherry juice line 72 dry suspicion Qi rice per hour.