There are many rectangles of 4cm in length and 3cm in width in the children's Park. If they are used to make a big square, how many centimeters is the minimum side length of the big square? How many centimeters do you need How many such small squares?

There are many rectangles of 4cm in length and 3cm in width in the children's Park. If they are used to make a big square, how many centimeters is the minimum side length of the big square? How many centimeters do you need How many such small squares?

Because the minimum common multiple of 4cm in length and 3cm in width is 12, the minimum side length of a large square is 12cm
The number of small rectangles is required: (12 △ 3) x (12 △ 4) = 12
(correction: not a small square, but a small rectangle)

Cut a big square into four small squares. The perimeter of the big square is 18 meters

The simplest formula
18 △ 2 = 9 (m)

Use four small squares with sides of 5cm to make a big square. How many centimeters is the perimeter of the big square?

Side length 4x5 = 20cm
Perimeter 20 × 4 = 80cm
Am I right?

Answers to the first page of summer vacation life published by Shanghai Education Press
Notice if it is published by Shanghai Education Press!

Longing for a small garden,
Can you show me their smiling faces,
Intoxicated in the fragrance of flowers
Longing for a book,
Let me play in interesting fairy tales
PS: is that ok

Xiaoqiang and Wang Hua are running on the circular track. They start from the same place and walk in opposite directions. Xiaoqiang walks 3.5 meters per second and Wang Hua walks 2.5 meters per second. They meet one minute later. How long is the track?

3.5x60＋2.5x60＝360m

How to do page 14 of the fourth grade of Du's summer vacation life in Shanghai Education Press

1. Hook, fork, hook, hook
300 divided by 10 = 30
（300-6*30）/2＝60
60-30＝30

As follows:
Information: 1 US dollar to human life ratio is 6.83 yuan, 1 euro to RMB 9.20 yuan, 100 yen to RMB 7.41 yuan. 1. How many yen can be exchanged with 530 yuan? How many RMB can be exchanged with 5000 euros? 4 US dollars to human name is not many yuan? (according to the information, it's better to have a process.)
Fill in the name of the company skillfully
1（）=60（） 1（）=10（） 1（）=7（） 1（）=1（）1（）=1000（）
One day, the exchange rate between RMB and Hong Kong dollar is 100 yuan. Hong Kong dollar can be exchanged for 88 yuan. How much RMB can Aunt Wang exchange for 500 yuan? How much Hong Kong dollar does it need to exchange for 880 yuan?
9 yuan, 8 Jiao, 3 fen + 10 yuan, 6 jiao, 9 Fen, 7 kg, 400 g - 900 g (calculated by decimal and recursive equation)

1. How much yen can be exchanged with 530 RMB? How much RMB can be exchanged with 530 ／ 7.4 × 100 ≈ 71625000 euro? 5000 × 9.2 = 460004 US dollars, equivalent to not much RMB? 6.83 × 4 = 27.322, 1 (hour) = 60 (minutes) 1 (meter) = 10 (decimeter) 1 (week) = 7 (days) 1 (thousand

What is the answer to the 31st year of the fourth grade of Shandong summer vacation life guidance in 2011?

Ride the magic bike.2.Jump up the__ tree_ .3.Eat the p_ ear___ .Don't eat the a__ pple_ .4.__ jump__ down to the ground.5.Drive the magic __ car_ .6.You can see a big robot__ .It is throwing _ flowers___ .7.Walk d...

1. Put all the things on your farm and Weite about it
2. What's the answer on page 7 of the summer vacation life guide
Put your pictures on the farm. I don't know how to introduce them. There are two apple trees and many flowers on my farm

2.There are some flowers and two apples trees in my beautiful farm .
1. Put everything on your farm and () about it
Weite doesn't know what it means. Sorry

(heart) ape, horse, (feeling) move along with things, (day) manage all kinds of opportunities, (travel) blade is more than enough, (cloud) white crane, (return) true return to nature, (son) void, (floating) want to dance together, (person) don't give poison, (meaning) in the pen first, (so) state re sprout, (fall) English colorful

Floating clouds, wandering, sunset, so human
Seeing my friend Li Bai off
Green mountains cross the north country, white water around the east city. Here is a farewell, lonely pengwanli March. Floating clouds, wandering, sunset, so human feelings. Wave from here, Xiao Xiao Ban Ma Ming