For example, what did you buy with your father in the supermarket today? What is the unit price and quantity? Dad bought 3 kilograms of meat, 2/kloc-0 yuan per kilogram, 5 kilograms of fish, 6 kilograms of apples, and 5 kilograms of 9 yuan. How much does dad have to pay? After shopping, I was hungry, and my father took me.
Just write it like this, and it's OK.