Teacher Li has traveled to Thailand. He took 4000 yuan to go shopping. How much Thai baht can he change? (100 baht is about RMB 20.32)

4000 ÷ 20.32x100 ≈19685.04 (baht)

A: Teacher Li Can exchanged 19685.04 baht.

Note: When students encounter infinite division, they should keep two decimal places.

analyse

This topic mainly investigates the conversion of RMB units.

Since 100 baht is converted into RMB 20.32, then RMB 1 yuan is converted into: 100÷20.32≈4.92 (baht), then RMB 4000 can be converted into Thai baht: 4.92x4000 =190.

When high-value units are converted into low-value units, they should be multiplied by the conversion rate. For example: 1 yuan = 1* 10 angle.

When converting units with small value into units with large value, divide by the conversion rate. For example: 10 Angle = 10/ 10 yuan.

Extended data:

Apply problem solving methods:

1, comprehensive method

The idea of solving problems by comprehensive method is to shift from known conditions to analytical methods of problems. The analysis method is: choose two known quantities and put forward the problems that can be solved; Then choose two known quantities and put forward the problems that can be solved; Deduce this step by step until the problem of the topic is solved.

2. Analytical method

The idea of analytical method is to start with the problem of application problems and find out the conditions needed to solve this problem according to the quantitative relationship. Some of these situations are known and some are unknown. Then, take the unknown condition as an intermediate problem, find out the conditions needed to solve this intermediate problem, and reason step by step until all the necessary conditions can be found from the topic.