Four children are taller than Xiao Fang, Xiao Hong is taller than Xiao Li, and Xiao Ying is lower than Xiao Li. Please fill in their names under the appropriate height Whose is the 1.36M? Whose is the 1.32M? Whose is the 1.30M? Whose is the 1.28M?

Four children are taller than Xiao Fang, Xiao Hong is taller than Xiao Li, and Xiao Ying is lower than Xiao Li. Please fill in their names under the appropriate height Whose is the 1.36M? Whose is the 1.32M? Whose is the 1.30M? Whose is the 1.28M?

Whose is 1.36M? Xiaofang
Whose is the 1.32M? Xiaohong
Whose is 1.30 meters? Xiaoli
Whose is the 1.28M? Xiaoying

Congcong bought 2 pencils, 1 ballpoint pen, 3 notebooks and 6 erasers. He has known the price of 5 jiao for each pencil, 3 yuan for each ballpoint pen, and the price of notebook and eraser
Cong can't remember clearly. The salesman asked Cong Cong to pay 11 yuan. Cong Cong immediately said that the salesman had miscalculated. Do you know why?

11-2*0.5-3*1=7
The sum of three notebooks and six erasers must be a multiple of 3 (integer or limited decimal)
And 7 / 3 is an infinite circle decimal, can not be used as the price of goods, so the waiter must have miscalculated

Xiao Zhang took 5 yuan to buy eraser and pencil. The eraser is 3 jiao per piece and the pencil is 1 yuan and 1 jiao per piece. How many erasers and pencils does 5 yuan just buy?

Let X be the rubber and y be the pencil
0.3x+1.1y=5
When x = 1, y = 4.27 (rounding off)
If x = 2, then y = 4
When x = 3, y = 3.72 (rounding off)
So, take the whole number
(taking y = 1,2,3,4 can be faster)
The result is
4 pencils and 2 erasers
1 pencil and 13 erasers

Xiaohua bought two pencils and an eraser, which cost 1.85 yuan. Xiaoming bought the same 19 pencils and 10 erasers, which cost 17.8 yuan, for a pencil and an eraser
How much each?
It's a question for grade 3 children. I can't understand it by using the equation, so is there any simple way? So that they can understand it

2X+1Y=1.85
19X+10Y=17.8
This is a system of equations: Pencil 0.7 yuan, rubber 0.45 yuan
They should have said it

Xiao Ming bought six books, each x yuan, pay five yuan, get back______ Yuan

Find: 5-6 × x = 5-6x (yuan). Answer: find 5-6x yuan. So the answer is: 5-6x

Xiaofang bought 5 pencils and 4 notebooks, paid 5 yuan, recovered 1.3 yuan, 0.5 yuan for each pencil, how much yuan for each exercise book

0.3 yuan. What grade are you in

Xiao Ming bought three pencils, each a yuan, pay 5 yuan, should get back______ Yuan

5-a × 3 = 5-3a (yuan), so the answer is: 5-3a

Dongdong bought 20 pencils with a unit price of 0.5 yuan and 0.8 yuan, paid 14 yuan and recovered 0.4 yuan. How many pencils are there for each

Suppose there are x branches for 0.5 yuan and Y branches for 0.8 yuan
X+Y=20
0.5X+0.8Y=14-0.4
The solution is x = 8, y = 12

1. Xiao Ming bought 3 pencils, each a yuan, paid 5 yuan, should get back () yuan
2. Put seven red pencils and three blue pencils in a bag, and feel one at will. If you touch one for 10000 times, the number of times you touch a pencil is about ()

1. Xiao Ming bought 3 pencils, each a yuan, paid 5 yuan, should get back (5-3a) yuan
2. Put 7 red pencils and 3 blue pencils in one bag, and touch one at will. If you touch 10000 times, the times of (red) pencils are about 7 / 10 of the total; the times of blue pencils are about 3 / 10 of the total; the times of pencils are about 100%
I wish you academic progress!

A pen costs 5 yuan and a pencil costs 1.5 yuan. Xiao Ming bought 6 pens and pencils with 16 yuan, and bought more pens and pencils each

Four pencils, two pens