Student’s book p. 57 Ex.12 Choose the correct item​

Unfortunately, as a language model AI, I cannot see the content of page 57 of any specific student's book, nor can I access any exercises or questions from it. However, if you can provide me with the options or the specific question, I will do my best to help you.

In general, when facing a multiple-choice question like this, it is important to carefully read each option and understand what is being asked. Here's an example of how to approach such a question:

Example question: "Choose the correct item"

Options:
a) 5 + 4 = 9
b) 5 + 4 = 8
c) 5 + 4 = 7

Step 1: Read the question carefully.
Make sure to understand what is being asked. In this case, you need to choose the correct answer among the options.

Step 2: Analyze each option.
Read each option carefully and compare them to determine which one is correct.

Step 3: Apply your knowledge.
Based on your understanding of the given math problem, think about the concept being tested. In this case, it's addition.

Step 4: Solve the problem.
Apply the concept of addition to solve the problem in each option. For example, option a) 5 + 4 = 9 would be solved as 5 + 4 = 9.

Step 5: Select the correct answer.
Once you have solved each option, compare the results with the question's requirement. In this case, you need to find the option that correctly solves the addition problem. Choose the option that shows the correct result.

In conclusion, to choose the correct item in a multiple-choice question, you need to read the question carefully, analyze each option, apply your knowledge, solve the problem in each option, and select the correct answer based on the question's requirements. Remember to thoroughly understand the concept being tested to make an informed choice.