Where are the two pairs of decimal multiplication vertical multiplier 200?

Where are the two pairs of decimal multiplication vertical multiplier 200?

For example, if 2.34 is multiplied by 200, 2 should be relative to 4 of 2.34

How to use the vertical form in decimal multiplication

Like integers, it's just a decimal point

Why is division vertical writing different from multiplication, addition and subtraction vertical writing

1. Customary writing: divisor - division sign (one horizontal and one apostrophe) - divisor - quotient - Product - remainder,
2. As an authoritative courseware produced by the Ministry of education, it shows the division sign (one horizontal and one apostrophe) - divisor - divisor - quotient - Product - remainder when it shows the division vertical,
3. According to the meaning of the formula, write the divisor - one apostrophe (division sign) - divisor - horizontal line (equal to) - quotient - Product - remainder, which is consistent with the vertical form of addition and subtraction multiplication, and easy to understand

Fifth grade scores, sub small mixed (more than 2 steps) add and subtract calculation questions and answers! 42 questions! Thank you very much!

1) 4/14+8/14=6/7
2) 7/10+2/10=9/10
3) 4/7-3/7=1/7
4) 3/14+7/14=5/7
5) 4/11+5/11=9/11
6) 4/15+2/15=2/5
7) 9/10-3/10=6/10
8) 7/13+5/13=12/13
9) 6/13+5/13=11/13
10) 2/8+3/8=5/8
11) 9/13-9/13=0
12) 9/13+3/13= 12/13
13) 11/12-4/12=7/12
14) 14/15-3/15=11/15
15) 1/13+11/13=12/13
16) 2/15-2/15=0
17) 7/12+3/12=5/6
18) 12/15-9/15=1/5
19) 1/8+2/8=3/8
20) 6/7-6/7= 0
21) 10/13+2/13=12/13
22) 2/13+7/13=9/13
23) 1/11+8/11=9/11
24) 3/4-1/4= 1/2
25) 4/15+10/15=14/15
26) 12/14-4/14=4/7
27) 7/13+2/13=9/13
28) 8/13-1/13=7/13
29) 12/14-12/14=0
30) 12/13-6/13=6/13
31) 3/7+3/7=6/7
32) 7/9+1/9=8/9
33) 8/14+2/14=5/7
34) 10/13-8/13=2/13
35) 3/14-3/14=0
36) 1/5+3/5=4/5
37) 1/12+6/12=7/12
38) 5/9+3/9=8/9
39) 7/11-2/11=5/11
40) 12/15-4/15=8/15
41) 1/14+5/14=3/7
42) 7/12-2/12=5/12

Mixed calculation of fraction addition and subtraction
There must be 7 out of 10. It's easy to calculate

3=5X X=3/5

Five practical problems about the mixed operation of fraction addition and subtraction
Whose is good
Who will be offered a reward of 100
Do what you say

1. The road repair team paved a road. In the first half of May, it paved 3 / 10 of the total length. In the second half of May, it paved 3 / 5 of the total length. How many parts of the road are left unpaved?
1-(3/10+3/5)=1/10
2. A pile of apples weighs 30 tons. Car a can transport 1 / 6 of the apples at a time, car B can transport 2 / 9 of the apples at a time, and how many parts of the apples can be transported by two cars at a time?
1-(2/9+1/6)=11/18
3. Xiao Li read 350 pages of a book. On the first day, he read 2 / 5 of the whole book. On the second day, he read 3 / 7 of the whole book. On the third day, he read all the books. What percentage of the book did he read on the third day?
1-(2/5+3/7)=6/35
4. There is a piece of bronze, which is made of copper, tin and zinc. Among them, copper accounts for 4 / 5 of the total weight, tin accounts for 1 / 20 of the total weight, and zinc accounts for several parts of the total weight?
1-(4/5+1/20)=3/20
5. The first group picked up 4 / 5 kg, the second group picked up 1 / 4 kg less than the first group, and the third group picked up 1 / 3 kg more than the second group. How many kg did the third group pick up?
4/5-1/4+1/3=53/60

May I ask how to do the mark and division and mark application problem of grade 5 mathematics?
How many parts of a number is another number?
For example, there are 25 boys and 23 girls in the class. What's the percentage of girls? What's the percentage of boys in the class?
The speed of a car is 20 meters per second, and that of a cheetah is 31 meters per second. What's the speed of a cheetah?
Two road repair teams have built a highway. Team a has built 2 / 7 of the total length, and team B has built 3 / 5 of the total length. How many parts of the highway are left?
Cut a 5-meter rope into six sections of the same length. Each section is the length of the rope
Anyway, it's a similar score application problem, including some score addition and subtraction, general score reduction problem!
You'd better explain it in detail,

If XX is a fraction of XX, it depends on whether their units are the same. If they are the same, they should calculate directly. If they are different, they should unify the units first, and then calculate. When calculating, you can divide the former item by the latter item, and the score is the result. Like the last question, the whole question and 5

27.3×3.6+36×7.27=?
I want to explain in a simple way what I asked for my friend
There's another one
(4.69×2.3+53.1×0.232)÷2.3=?

27.3 × 3.6 + 36 × 7.27 = 2.73 × 36 + 36 × 7.27 = 36 × (2.73 + 7.27) = 36 × 10 = 360, it should be (4.69 × 2.3 + 53.1 × 0.23) × 2.3 (4.69 × 2.3 + 53.1 × 0.23) × 2.3 = (4.69 × 2.3 + 5.31 × 2.3) × 2.3 = [2.3 × (4.69 + 5.31)] × 2.3 = 2.3 × 10

For the fifth grade application problem (simple point)

The answer is to make it by yourself. (1) a rope is 35 meters long, 14.75 meters long, how many meters are left? (2) a car runs 25 kilometers in 0.5 hours, how many kilometers in 1 hour? (3) two fifths of a batch of goods have been carried away, how many parts are left? (4) there are 50 students in a class, and the attendance rate today is 96%

A rectangular iron box is 4dm in length, 3DM in width and 5DM in height. How many square decimeters of iron sheet should be used to make such an iron box? (regardless of other factors such as joints and gaps) how many liters of volume? (regardless of iron flat thickness)

4*3*2=24
4*5*2=40
3*5*2=30
24+40+30=94dm²
4*3*5=60dm³