Question

Как правильна раставить скобки в выражении 2х2+2:2+2=8

Answer 1

2*(2+2:2)+2=8 вроде так)

Answer 2

Вот-так:(2х2)+(2:2)+2=8

Answer 3

How to correctly place parentheses in the expression 2×2+2÷2+2=8

To correctly place parentheses in the expression 2×2+2÷2+2=8, we need to follow the order of operations, also known as the PEMDAS rule. PEMDAS stands for Parentheses, Exponents, Multiplication and Division (from left to right), and Addition and Subtraction (from left to right).

Let's break down the expression step by step:

1. Multiplication: 2×2 = 4 2. Division: 2÷2 = 1 3. Addition: 4+1 = 5 4. Addition: 5+2 = 7

So, without any parentheses, the expression simplifies to 7, not 8.

To make the expression equal to 8, we can add parentheses to change the order of operations. There are multiple ways to do this, but one possible way is:

2×(2+2÷2)+2 = 8

Let's break down this expression step by step:

1. Division: 2÷2 = 1 2. Addition: 2+1 = 3 3. Multiplication: 2×3 = 6 4. Addition: 6+2 = 8

So, by placing parentheses as shown above, the expression simplifies to 8.

Note: It's important to remember that without parentheses, multiplication and division have the same level of precedence and should be performed from left to right. Similarly, addition and subtraction have the same level of precedence and should be performed from left to right.

I hope this helps! Let me know if you have any further questions.