Question

Реши задачу разными способами. В кувшине было 12 стаканов молока.На кашу пошло 5 стаканов молока,а на омлет-2 стакана. Сколько стаканов молока осталось в кувшине?

Answer 1

12-5=7
7-2=5
Ответ: 5 стаканов молока осталось в кувшине

Answer 2

                                        1 способ                                                                                                                                                                                               1) Сколько молока пошло на омлет и кашу вместе?
    5+2=7
2) Сколько осталось в кувшине?

12-7=5
                                    2 способ

1) Сколько осталось в кувшине после того как взяли на кашу?
  12-5=7

2)Сколько осталось после того как взяли на омлет?
      7-2=5

Answer 3

Problem Analysis

We are given that there were 12 cups of milk in a jug. 5 cups of milk were used for porridge, and 2 cups were used for an omelet. We need to determine how many cups of milk are left in the jug.

Solution 1: Subtraction

We can solve this problem by subtracting the cups of milk used from the total cups of milk in the jug.

Total cups of milk in the jug = 12 Cups of milk used for porridge = 5 Cups of milk used for omelet = 2

To find the cups of milk left in the jug, we subtract the cups of milk used from the total cups of milk:

Cups of milk left = Total cups of milk - Cups of milk used

Cups of milk left = 12 - 5 - 2 = 5

Therefore, there are 5 cups of milk left in the jug.

Solution 2: Addition and Subtraction

Another way to solve this problem is by adding the cups of milk used for porridge and omelet and then subtracting it from the total cups of milk in the jug.

Total cups of milk in the jug = 12 Cups of milk used for porridge = 5 Cups of milk used for omelet = 2

To find the cups of milk left in the jug, we add the cups of milk used for porridge and omelet and then subtract it from the total cups of milk:

Cups of milk left = Total cups of milk - (Cups of milk used for porridge + Cups of milk used for omelet)

Cups of milk left = 12 - (5 + 2) = 12 - 7 = 5

Therefore, there are 5 cups of milk left in the jug.

Solution 3: Using Variables

We can also solve this problem using variables. Let's assume the total cups of milk in the jug as 'T', the cups of milk used for porridge as 'P', and the cups of milk used for omelet as 'O'.

T = 12 (Total cups of milk in the jug) P = 5 (Cups of milk used for porridge) O = 2 (Cups of milk used for omelet)

To find the cups of milk left in the jug, we subtract the cups of milk used from the total cups of milk:

Cups of milk left = T - (P + O)

Cups of milk left = 12 - (5 + 2) = 12 - 7 = 5

Therefore, there are 5 cups of milk left in the jug.

Conclusion

In conclusion, there are 5 cups of milk left in the jug after using 5 cups for porridge and 2 cups for an omelet. This can be determined by subtracting the cups of milk used from the total cups of milk in the jug.