On September 18th, the simple calculation of decimal operations passed the five-year decimal on September 18th (1) 3.9-4.1 + 6.1-5.9 (2) 35.6-1.8-15.6-7.2 (3) 19.625-(7.625-4.716) (4) 9.9+99.9+999.9+0.3(5) 12.5×8.8 (6) 24×9.9 (7) (2.5-0.

Category：education

2025-04-17

Simple calculation of decimal operations on Friday, September 18th,

(1) 3.9-4.1+6.1-5.9 (2)35.6-1.8-15.6-7.2

（8） 23.5×5.67－23.5×5.66

(13) 15.6×13.1－15.6×2.1 （14） 28.9×4.68+4.68×61.1+46.8

（15） 6.66×1.2+3.33×7.6 （16）99×（9.3－3.7）+5.6

（17）(2.4+2.4+2.4+2.4) ×2×1.25 (18)4.65×32+2.5×46.5+0.465×430

(19) 0.65×10.1 (20) 8.43×6.8+8.43×2.7+9.5×1.57

education Latest News

Solution: x≠-1/2, -1 original equation becomes (4x+3)²=18/(2x+1) (2x+2) Introduce parameters a, ba=2x+1b=2x+2a+b=4x+3∴(a+b)²=18/ab…①∴ab(a+b)²=18…② Also ∵b-a=1, ∴b=a+1…③ Substitute ②a(a+1) (2a+1)²=18 (a²+a) (4a - DayDayNews
Since the "Chengdu Nature and Humanities Lecture Hall" was opened in 2019, it has held many series of lectures on popular science and education in nature every year, which has been widely welcomed and paid attention from all walks of life. This time, you can also serve as a guest - DayDayNews
In recent years, Lianyuan No. 6 Middle School has developed efficiently, setting a record high in terms of school scale and quality. However, due to limited school funding, air conditioners have not been installed in student dormitories and classrooms, which seriously affects stu - DayDayNews
Time is not a problem, knowledge and skills are small problems, and learning habits are big problems, and the concept of dealing with these problems is a bigger problem. An excellent child is first of all, with excellent learning concepts, and secondly, with excellent talents, ha - DayDayNews
Question bank source: Production Safety Simulation Examination Yitong Official Account Mini Program 2022 Explosion-proof Electrical National Question Bank Department Explosion-proof Electrical Examination Question Bank New Edition Exercise Bank! The 2022 explosion-proof electrica - DayDayNews
Question bank source: Production Safety Simulation Examination Yitong Official Account Mini Program 2022 Dataman-General Basics (Dataman) Question bank is the new full test question type of the Dataman-General Basics (Dataman) Examination Question Bank! 2022 Dataman-General Basic - DayDayNews
The 2022 Fluorination Process Examination Simulation 100 Questions Simulation Examination Platform Operation is based on the latest textbook compilation of fluorination process. [Single choice question] refers to people who act as a replacement for certain emergency organizations - DayDayNews
The 2022 Chinese Pastry Teacher Operation Certificate Examination Question Bank and the mock exam are based on the Chinese Pastry Teacher's new version of the exam question bank. [Single choice question] In the "Diet Guide for Chinese Residents", there are clauses that remind peo - DayDayNews
[Multiple choice question] Brief introduction to the accident: Wang, an employee of a steel factory, drove an open-air span 10t double-beam bridge crane without authorization because the crane driver was resting. Because the lifting limit had failed, the hook was hit by the top a - DayDayNews
The last lesson of the first grade Chinese textbooks in primary school currently used nationwide is a fairy tale called "Little Snail". Spring is coming, and the snail mother said to the little snail: "Child, go to the woods to play, the little tree has sprouted." - DayDayNews

Site article recommendation

Preface: On October 11, 2021, North Korea held a national defense development exhibition in Pyongyang, exhibiting ballistic missiles developed in the past few years. People were surprised to find that not only Mars series ballistic missiles and Polaris submarine-launched missiles - DayDayNews
It is precisely this reality that there is still a need for counter-boarding war in the 21st century that makes naval pitching grenades, a combat form that is "spiritual existence" even in our eyes, still has practical significance in the Korean Navy. It is inevitable to walk by - DayDayNews
Watch for a happy home, watch for peace in China, and watch for peace in the world. Today, October 5th, the fifth day of the National Day holiday, watch the global situation, watch and share good news and bad news today. - DayDayNews
Soups are said to be a good thing in Guangdong. Whether before or after meals, drinking soup has become a habit for people. Of course, some soups are nutritious and very suitable for tonics! - DayDayNews
I believe everyone is familiar with black chicken. Its fresh meat is a common delicacy on the dining table at home. A bowl of fresh and fragrant black chicken soup is not only attractive in taste, but also very beneficial to the body, especially for female friends. - DayDayNews
However, there are three recognized varieties of black chicken, and they all have their own characteristics, and the comparison of advantages and disadvantages is also obvious. So which breed of black chicken has the best economic benefits? - DayDayNews