I like math very much, and I like exploring at ordinary times. Mathematics is a part of my life and my only hobby. My dream is to be a mathematician, a great mathematician.
In the fourth grade, Mr. Zhou, a math teacher, taught us the Law of Constant Quotient. As a beginner, I am curious and some don't believe it.
The law of quotient invariance is that in division, the dividend and divisor are expanded or reduced several times at the same time, and the quotient will not change, but the remainder will change.
I started an experiment around this rule. I tried two numbers, 40 and 6. 40 divided by 6 equals 6, and the remainder is 4. I expand 40 and 6 at the same time/kloc-the same multiple of 0/00 becomes 4000 divided by 600. I calculated that the quotient is 6 and the remainder is 400. Its quotient has not changed, and the remainder has been expanded to the same multiple of 100, which becomes 400. I was taken aback. The quotient really hasn't changed. It's still 6, but the remainder has changed.
I still don't believe it. I tried again with 50 and 4. 50 divided by 4 equals 12, and the quotient is 2. This time, I expand 50 and 4 to twice the original number at the same time, and it becomes 100 and 8 100 divided by 8, and the quotient is 12, and the remainder is 4. The quotient has not changed, but the remainder has been enlarged by 2 times to become 4. I was completely shocked and once again realized the magic of mathematics.
When I was in the fifth grade, I came into contact with equations, which are actually equations with unknowns. After studying the invariant law of quotient, I became interested in this equation again. I found a lot of equations to do and learned to find the law from them.
3x？ 2=302 is calculated by subtracting 2 from 302 to become 3x=302-2, then 3x=300, and then dividing 300 by 3 to become x=300÷3, and the result becomes x= 100. I didn't expect to solve this equation in just a few steps and get the answer.
I found another equation to calculate. 5x-6÷3=38, first 6÷3 to 5x-2=38, then 38? 2 equals 40, and the formula becomes 5x=40. Finally, 40 divided by 5 equals 8, and the result is x=8.
Mathematics is like a mountain peak, soaring into the sky. I felt relaxed at first, but the higher I climbed, the steeper the peak became, which made people feel scared. At this time, only those who really love mathematics will have the courage to continue climbing. Therefore, people who stand at the peak of mathematics all like mathematics from the heart. People who stand at the foot of the peak will never see the peak. Only by discovering and feeling mathematics in life can we broaden our horizons!
Let's explore the mystery of mathematics together!
Sixth grade: Yang Lu