In the formula of elementary arithmetic, the calculation process is expressed by equations in order of operation. This kind of equation is called recursive equation.
For example, calculate 30+5×6.
30+5×6
=30+30
=60
In this way, we use equations to represent the calculation process according to the operation order (the operation order of this question is to multiply first and then add), which is the calculation method of recursive equations.
What is recursive calculation in mathematics?
In the formula of elementary arithmetic, the calculation process is expressed by equations in turn according to the operation order, and such equations are called recursive equations. For example: 485-(6×4+32)
=485-(24+32)
=485-56
=429
What's the difference between disjunctive calculation and recursive calculation?
Out-of-type calculation, that is, recursive calculation, is an operation that completely writes out the calculation process, that is, out-of-type calculation. When calculating mixed operations, it is usually to work out an expression step by step (step by step, you can't write an equal sign on the original formula), and the process of each step should be written out. Generally speaking, the equal sign should go forward and not be aligned with the first line. That is, to leave the original calculation.
What is recursive computing?
Such as 6-4-2
=2-2
=0
What is recursive computing?
Recursive equation calculation is to write each equation step by step or step by step in the order of operation until the result is obtained. This form of writing is called recursive equation.
In elementary arithmetic, students should be required to write the operation process with recursive equations.
Example:
(200-60)÷70 ×2+5
= 140÷70 ×2+5
=2×2+5
=4+5
=9