The combination of 27 and 3 and 16 is a formula in China's traditional folk arithmetic, which is used to represent the number obtained by adding ten digits and three digits, plus three digits. Simply put, it is the result of adding ten digits of a two-digit number and a number, plus three times of a number.

Specific calculation method

Taking the number 23 as an example, the calculation method of 27+3+ 16 is as follows:

2+3=5

3x3=9

5+9= 14

So the combination of two seven three and one six two three is 14.

Source and use

Although the specific origin of the combination of Erqi and 3716 is not clear, it has long been widely used in folk arithmetic in China. Its main purpose is to make it easier for children to remember and understand when learning addition and subtraction.

Similar to an arithmetic formula

Besides the combination of 27 and 3 and 16, there are some similar arithmetic formulas in China. For example, "sum, difference, multiplication and division are in the heart", "99 is better than 1 theorem, and the mystery is in the heart" and so on. These formulas also have a similar effect, so that children can better remember and understand arithmetic operations.

Other formulas and learning methods

In addition to formulas, children can deepen their understanding and memory of numbers through some other learning methods. For example, using digital cards, math games, digital charts and so on, these methods can make children learn numbers and arithmetic operations more easily.

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The combination of 27 and 3 and 16 is a traditional arithmetic formula in China, which makes it easier for children to remember and understand numbers. In addition to formulas, there are many other learning methods that can help children learn numbers and arithmetic operations better, and these methods should be fully developed and utilized.