In this question, we have to figure out how many strokes Xiaojun writes more than Xiaohong every day. Is to subtract Xiaohong's daily number from Xiaojun's daily number.
Suppose Xiaohong writes X pens every day and Xiaojun writes Y pens every day.
According to the topic, our little red writes 20 strokes every day.
Xiaojun wrote 96 strokes in three days. We have to calculate how many strokes Xiaojun writes every day. We can divide 96 strokes in three days.
Formula: y=96÷3, y=32, so we can let Xiaojun write 32 strokes a day.
We need to find out how many times Xiaojun writes more than Xiaohong every day. We only need to subtract the number of strokes written by Xiaojun from the number of strokes written by Xiaohong every day (20). That is, y- x
The result is the difference between them, 12 Chinese characters.
The importance of basic arithmetic:
Basic arithmetic is an indispensable part of our daily life. In shopping, budgeting, planning trips and other activities, we need to use basic arithmetic operations such as addition, subtraction, multiplication and division to solve problems. We need to calculate the total shopping price, compare the prices of different products, or calculate the reduced prices. These all need the support of basic arithmetic.
Basic arithmetic is also the basis for us to learn more advanced mathematics and other scientific fields. Basic operations such as addition, subtraction, multiplication and division are not only the basis of mathematics, but also the basis of natural science disciplines such as physics, chemistry and engineering. In these fields, scientists need to use basic arithmetic to model, calculate and explain various phenomena. Without the support of basic arithmetic, they will not be able to conduct effective research and teaching.
3. Basic arithmetic is also of great significance to cultivate our logical thinking and problem-solving ability. By studying and applying basic arithmetic, you can exercise your thinking ability and learn to analyze and solve various problems. This ability is not only very useful in daily life, but also can help us succeed in our career.