Clever calculation
Clever calculation includes distribution law, associative law and commutative law of multiplication and division. Addition, exchange, combination, etc. This needs to be found in a formula. Find the applicable law and the decomposition number of each number, and you can work out the answer skillfully.
Knowledge expansion:
Clever calculation, also known as quick calculation, refers to a fast and accurate calculation method, which is often used in mathematics and daily life. However, there are different views on whether it is necessary to learn clever calculation.
First of all, learning clever arithmetic can improve our computing ability and math skills. In daily life, we often need to make simple calculations, such as calculating change when shopping and calculating bills.
But for some complex calculations, such as addition, subtraction, multiplication and division of multiple digits, square root and so on. Using clever calculation methods can greatly simplify the calculation process and improve the calculation efficiency and accuracy. In addition, learning clever calculation can also help us to better understand mathematical principles, so as to better apply mathematical knowledge.
However, there are some disadvantages in learning clever calculation. First of all, it takes time and energy to learn clever calculation, which requires us to have enough study perseverance and patience. Secondly, learning to calculate skillfully requires a certain mathematical foundation, so you may need to learn some basic mathematical knowledge first.
In addition, although some clever calculation methods can simplify the calculation process, they may also make the calculation more complicated, especially in the face of some more complicated calculations.
Learning clever arithmetic has both advantages and disadvantages. Although learning clever arithmetic can improve our computing ability and math skills, it also takes some time and energy. Therefore, whether it is necessary to learn clever calculations needs to be judged according to personal needs and actual conditions.
For accountants, cashiers and other people who need to calculate quickly and accurately, it may be more important to learn to calculate skillfully. For people who only need to do some simple calculations, such as ordinary consumers, it may not be necessary to learn clever calculations.