The vertical decomposition is as follows:
Determine the single digits and ten digits of two numbers.
For example, for the addition problem of 15+6, the unit number of 15 is 5 and the decimal number is1; The single digit of 6 is 6, and there are no ten digits.
Add up the single digits.
In this example, 5+6= 1 1.
If the sum of single digits exceeds 10, move the extra digits (that is, carry) to the position of ten digits.
In this example, the extra 1 1 is moved to the position of ten digits, and the result is as follows:
1
15
six
2 1
Next, add up these ten numbers and add any possible carry value.
In this example, the carry of 1+0( 10+0 (decimal number 6 = 1.
The sum of the last ten digits is added to the sum of the single digits to get the final result.
In this example, the result is 2 1.
Vertical decomposition can clearly see the operation process on each number, so as to better understand the addition operation. This method can help to calculate the addition problem within 20 more quickly and accurately.
Vertical decomposition application field
1, Basic Mathematics Education: Vertical decomposition is one of the important steps to learn basic operations such as addition, subtraction, multiplication and division. By decomposing numbers, children can better understand the structure and operation rules of numbers and gradually improve their computing ability.
2. Commerce and finance: Vertical decomposition is widely used to calculate amounts, profits, costs, taxes, etc. in the commercial and financial fields. This method can help financial personnel to carry out accurate numerical calculation and ensure accuracy and traceability.
3. Engineering and science: In the field of engineering and science, vertical decomposition is often used for complex calculation and data processing. For example, when calculating force, speed, acceleration, etc. In physics, vertical decomposition can align each number and perform effective numerical operations.