Question

3 класс, помогите друзья. 1). Обезьянка собрала за три дня 25 бананов. В первый день она собрала 14 бананов, в третий 5 бананов. Сколько бананов собрала обезьянка на второй день? 2). Портниха купила 28 рулонов ткани. На пальто ушло 13 рулонов, на юбку 4. Сколько рулонов ткани осталось? 3). За 3 дня рабочие починили 45 холодильников. За 1первый день они починили 7 холодильников, за 3-й 14. Сколько холодильников рабочие починили за второй день?

Answer 1

1) 25-(14+5)=6 бананов во 2 день 2) 28-(13+4)=11 рулонов осталось 3) 45-(7+14)=34 холодильников во 2 день

Answer 2

Question 1: Обезьянка собрала за три дня 25 бананов. В первый день она собрала 14 бананов, в третий 5 бананов. Сколько бананов собрала обезьянка на второй день?

To find out how many bananas the monkey collected on the second day, we need to subtract the number of bananas collected on the first and third days from the total number of bananas collected in three days.

The monkey collected a total of 25 bananas in three days. On the first day, it collected 14 bananas, and on the third day, it collected 5 bananas. To find out how many bananas the monkey collected on the second day, we subtract the sum of the bananas collected on the first and third days from the total number of bananas collected in three days.

Let's calculate it step by step:

Total bananas collected in three days: 25 Bananas collected on the first day: 14 Bananas collected on the third day: 5

To find the number of bananas collected on the second day, we subtract the sum of the bananas collected on the first and third days from the total number of bananas collected in three days:

Bananas collected on the second day = Total bananas collected in three days - Bananas collected on the first day - Bananas collected on the third day

Bananas collected on the second day = 25 - 14 - 5

Therefore, the monkey collected 6 bananas on the second day.

Question 2: Портниха купила 28 рулонов ткани. На пальто ушло 13 рулонов, на юбку 4. Сколько рулонов ткани осталось?

To find out how many rolls of fabric are left, we need to subtract the number of rolls used for the coat and skirt from the total number of rolls purchased.

The seamstress bought a total of 28 rolls of fabric. She used 13 rolls for the coat and 4 rolls for the skirt. To find out how many rolls of fabric are left, we subtract the sum of the rolls used for the coat and skirt from the total number of rolls purchased.

Let's calculate it step by step:

Total rolls of fabric purchased: 28 Rolls used for the coat: 13 Rolls used for the skirt: 4

To find the number of rolls of fabric left, we subtract the sum of the rolls used for the coat and skirt from the total number of rolls purchased:

Rolls of fabric left = Total rolls of fabric purchased - Rolls used for the coat - Rolls used for the skirt

Rolls of fabric left = 28 - 13 - 4

Therefore, there are 11 rolls of fabric left.

Question 3: За 3 дня рабочие починили 45 холодильников. За первый день они починили 7 холодильников, за третий 14. Сколько холодильников рабочие починили за второй день?

To find out how many refrigerators the workers repaired on the second day, we need to subtract the number of refrigerators repaired on the first and third days from the total number of refrigerators repaired in three days.

The workers repaired a total of 45 refrigerators in three days. On the first day, they repaired 7 refrigerators, and on the third day, they repaired 14 refrigerators. To find out how many refrigerators the workers repaired on the second day, we subtract the sum of the refrigerators repaired on the first and third days from the total number of refrigerators repaired in three days.

Let's calculate it step by step:

Total refrigerators repaired in three days: 45 Refrigerators repaired on the first day: 7 Refrigerators repaired on the third day: 14

To find the number of refrigerators repaired on the second day, we subtract the sum of the refrigerators repaired on the first and third days from the total number of refrigerators repaired in three days:

Refrigerators repaired on the second day = Total refrigerators repaired in three days - Refrigerators repaired on the first day - Refrigerators repaired on the third day

Refrigerators repaired on the second day = 45 - 7 - 14

Therefore, the workers repaired 24 refrigerators on the second day.