Quadrupling is quadrupling. Because doubling means geometric growth. Quadrupling is expressed by a mathematical formula, which is a multiple of 2. That is, the formula after flipping n times is, a * 2 n. For example, the original number is m, then the number after n times is = m * 2 n. Then the four multiples mentioned in the question are equal to m * 22 = 4 m. And 4m÷m=4. That is to quadruple, quadruple.
Doubling is the original number multiplied by 2, for example, the original number is 3, and doubling is 3×2=6. An integer can be divisible by another integer, which is a multiple of another integer. For example, 15 can be divisible by 3 or 5, so 15 is a multiple of 3 and 5.
Some multiples of numbers are characterized by multiples of 2, and even numbers (0, 2, 4, 6, 8) are at the end of a number, which is a multiple of 2. A multiple of 3, the sum of digits of a number is a multiple of 3, and this number is a multiple of 3.
A multiple of 4, the last two digits of a number are multiples of 4, and this number is a multiple of 4. A multiple of 5, a number ends in 0 or 5, and this number is a multiple of 5. A multiple of 6, as long as a number is divisible by both 2 and 3, then this number can be divisible by 6.
The benefits of learning mathematics
People who are good at math are relatively smart and savvy, and they can show their advantages in dealing with people. The faster you think, the more ways and ideas you have. Cambridge, majoring in financial mathematics at Carnegie Mellon University in the United States, said that studying mathematics has brought her mental exercise and made me pay more attention to the rigor of thinking in my life.
For example, before solving a problem, I like to divide it into several sections, and each section is divided into several steps, so that I can dig slowly like a branch instead of thinking in confusion in front of a pile of data.
Mathematics is the foundation of other disciplines, and it is easier for people who learn mathematics well to get into other disciplines. Learning software, computer, finance and other engineering majors is even more handy.