Fractional multiplication is a mathematical operation method. The numerator of the fraction is multiplied by the numerator and the denominator is multiplied by the denominator. If you can subtract, you must subtract first, and the numerator cannot be multiplied by the denominator. When doing the first step, we should think about whether the numerator of one number and the denominator of another number can be reduced. Fractional division is the inverse of fractional multiplication. Calculation rule of fractional division: A number divided by B number (except 0).
Is equal to the reciprocal of the number a times the number b. When the divisor is less than 1, the quotient is greater than the dividend; When the divisor equals 1, the quotient equals the dividend; When the divisor is greater than 1, the quotient is less than the dividend. Percentage generally refers to percentage. Percentage refers to the percentage that one number is another number, also known as percentage or percentage. Percentages are usually not written in the form of fractions, but are represented by the symbol "%"(percent sign).
In mathematics, ratio is a division formula composed of the former term and the latter term, which turns the division symbol into a comparison symbol, but the division formula represents an operation and the ratio represents the relationship between two numbers. In a plane, a closed curve formed by rotating around a point for a certain length is called a circle.
Thinking mode:
1, flow chart; Use block diagram to express the order of thinking, including beginning, process and result.
2. Conceptual schema; Use various figures and lines to express concepts, nouns and terms in thinking.
3. Tree structure; Use tree structure to represent categories, levels and subsystems in thinking.
4. Table architecture; Express data, information, calculation, etc in tabular form. Thinking.
5. Combination of graphics and text; Use the combination of words and graphics to express the content, logic and reasoning in thinking.
Extended data:
Mind mapping is a scientific and effective learning tool and method, which can help children analyze problems, organize their thinking and learn quickly, thus making learning more efficient and easier, firmly grasping the learning content and improving their grades in various subjects. While using mind mapping, children will be required to refine and simplify their knowledge, mobilize their subjective initiative, and then improve their learning efficiency.
Mind mapping summarizes and expands knowledge, and links new knowledge with original knowledge, which is helpful for deep understanding and mining of knowledge. Mind mapping helps to deepen the memory of knowledge, and then improve memory. The colors and graphics used in mind maps can stimulate children's brains in many ways, make them more interested in what they have learned and stimulate their creativity.