The length of a steel wire is 24 meters. One third of the total length is used for the first time, and 20% of the total length is used for the second time ）How many meters are used in the two times? (2) How many meters are left? (3) How many meters more do you use the first time than the second time?

The length of a steel wire is 24 meters. One third of the total length is used for the first time, and 20% of the total length is used for the second time ）How many meters are used in the two times? (2) How many meters are left? (3) How many meters more do you use the first time than the second time?

(1) Two times sharing 24 × (1 / 3 + 20%) = 12.8m
(2) 24-12.8 = 11.2m left
(3) The first time is more than the second time: 20 × (1 / 3-20%) = 3.2m

Buy 55 football, buy 20% less basketball than football, buy how many basketball?

Solution: & nbsp; & nbsp; 55 × (1-20%) & nbsp; & nbsp; & nbsp; & nbsp; = 55 × 0.8 & nbsp; & nbsp; & nbsp; = 44 (pieces) & nbsp; a: bought 44 basketball

There is a kind of clothing in the store. After 20% price reduction, the price is 120 yuan. How much is the original price higher than the current price?
For example, the whole formula is required,

What is the original price
120 (1-20%) = 150 (yuan)
The original price is higher than the present price
150-120 = 30 yuan

20 / 30 / 40 / 50 / 60 / 70 / 80 / 90 / 100 translated into English

twenty/thirty/forty/fifty/sixty/seventy/eighty/ninety/one hundred

How to add, subtract, multiply and divide to two

4/4+4/4=2

The sun shines on the lake, the good news reaches the school, and the bookshelf is full of books
More vivid

The warm sunshine gently shines on the sparkling lake, and the sudden good news comes to the school. The high bookshelves are full of books pregnant with wisdom

How many days is 30 hours?

One day = 24 hours
1 hour = 1 / 24 day
So 30 hours = 30 * 1 / 24 = 5 / 4 = 1.25 days

How to calculate that 3 / 15 + 3 / 10 + X / 10 equals 1

3/15+3/10+x/10=1
1/5+3/10+x/10=1
2/10+3/10+x/10=1
2+3+x=10
x=5

Xiaoqiang, Xiaoming and Xiaogang are 1.50 meters tall on average. Xiaoming is 1.48 meters tall. Xiaoqiang is as tall as Xiaogang. How many meters is Xiaoqiang?

The sum of three people's height = 1.5 × 3 = 4.5m
Xiaoqiang and Xiaogang height sum = 4.5-1.48 = 3.02m
Xiaoqiang is as tall as Xiaogang
Ψ Xiaoqiang height = 3.02 △ 2 = 1.51m

English translation
What are the English words of 104-110

one hundred and four
one hundred and five
one hundred and six
one hundred and seven
one hundred and eight
one hundred and nine
one hundred and ten