A cold drink shop posted this notice: After drinking soda, you can exchange 2 empty bottles for 1 soda. Xiao Ming bought 4 bottles of soda. How many bottles of soda can she drink at most?

You can drink up to 3 bottles.

Explanation and analysis: According to the meaning of the question, Xiao Ming bought 4 bottles of soda.

The store stipulates that 2 empty bottles can be exchanged for one drink.

Using the division method, The column formula can be obtained:

4/2=2, that is, you can drink 2 bottles first;

After drinking 2 bottles, 2 empty bottles appear;

The store stipulates that 2 empty bottles can be exchanged for one drink.

So 2/2=1, then you can still drink one bottle, and there will be one bottle left after drinking.

Extended information:

The remainder has the following important properties (a, b, c are all natural numbers):?

1. The difference between the remainder and the divisor The absolute value should be smaller than the absolute value of the divisor (applicable to the real number domain);

2. Divisor = divisor × quotient remainder;

Divisor = (divisor-remainder) ÷ quotient;

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Quotient = (divisor - remainder) ÷ divisor;

Remainder = dividend - divisor × quotient.

3. If the remainders of dividing a and b by c are the same, then the difference between a and b can be divisible by c. For example, the remainders of dividing 17 and 11 by 3 are both 2, so 17-11 is divisible by 3.

4. The remainder of the sum of a and b divided by c (except when a and b are divided by c without remainder) is equal to the sum of the remainders of a and b divided by c respectively ( or the remainder of this sum divided by c).

For example, the remainders of dividing 23 and 16 by 5 are 3 and 1 respectively, so the remainder of (23 16) divided by 5 is equal to 3 1=4. Note: When the sum of the remainders is greater than the divisor, the remainder is equal to the sum of the remainders divided by c.