Question

Утром в магазине было 30 шкафов для книг и 10 шкафов для одежды. К концу дня осталось 12 шкафов. Сколько шкафов продали за день? Короткий запись.

Answer 1

30 шкафов - для книг
10 шкафов - для одежды
Осталось - 12 шкафов
Продали за день - ?

Answer 2

30+10=40
40-12=28
Ответ: продали 28 шкафов

Answer 3

Calculation of the Number of Cabinets Sold

To calculate the number of cabinets sold, we need to subtract the number of cabinets remaining at the end of the day from the total number of cabinets available in the morning.

Given: - Number of book cabinets in the morning: 30 - Number of clothing cabinets in the morning: 10 - Number of cabinets remaining at the end of the day: 12

To find the number of cabinets sold, we can add the number of book cabinets sold to the number of clothing cabinets sold.

Let's calculate it step by step:

1. Calculate the number of book cabinets sold: - Number of book cabinets in the morning: 30 - Number of book cabinets remaining at the end of the day: 12 - Number of book cabinets sold = Number of book cabinets in the morning - Number of book cabinets remaining at the end of the day - Number of book cabinets sold = 30 - 12 = 18

2. Calculate the number of clothing cabinets sold: - Number of clothing cabinets in the morning: 10 - Number of clothing cabinets remaining at the end of the day: 12 - Number of clothing cabinets sold = Number of clothing cabinets in the morning - Number of clothing cabinets remaining at the end of the day - Number of clothing cabinets sold = 10 - 12 = -2

Since the result is -2, it means that there was an increase in the number of clothing cabinets rather than a sale. Therefore, we can conclude that no clothing cabinets were sold.

In summary, 18 book cabinets were sold during the day.