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How to take a math handwritten newspaper to the supermarket? There is no information on the internet, and school starts in two days. Hurry up!
1. Write the formula about sales, such as: original price * discount = purchase price, etc.

2. Warning: See the decimal point clearly, how many digits are there in the price, and the digits after the decimal point.

3. Shop around; Shopping around

4. Draw a person pushing a cart, and it is better to have something in the cart. Draw some goods and numbers.