Question

Как правильно раскрывать скобки 6 класс объяснение

Answer 1

Чтобы раскрыть скобки,перед которыми стоит знак "-" надо этот знак заменить на "+" поменяв знаки всех слагаемых в скобках на противоположные, а потом раскрыть скобки и наоборот если стоит "+" надо менять на минус.
Например:16-(10-18+12)=16-10+18-12=6+6=12

Answer 2

How to Properly Expand Brackets in 6th Grade - Explanation

Expanding brackets is an important concept in mathematics that involves multiplying terms inside parentheses by a factor outside the parentheses. This process is also known as distributing or applying the distributive property. Let's dive into the details of how to properly expand brackets in 6th grade.

To expand brackets, you need to multiply each term inside the parentheses by the factor outside the parentheses. This means that every term inside the parentheses is multiplied by the factor individually. Let's look at an example to understand this better.

Example: Consider the expression 2(3 + 4). To expand the brackets, we need to multiply each term inside the parentheses (3 and 4) by the factor outside the parentheses (2).

Expanding the brackets, we get: 2 * 3 + 2 * 4 = 6 + 8 = 14

So, 2(3 + 4) is equal to 14 after expanding the brackets.

It's important to remember that the distributive property applies to both addition and subtraction. If there is a subtraction sign inside the parentheses, you need to distribute the negative sign as well. Let's look at another example to illustrate this.

Example: Consider the expression 5(6 - 2). To expand the brackets, we need to multiply each term inside the parentheses (6 and -2) by the factor outside the parentheses (5).

Expanding the brackets, we get: 5 * 6 - 5 * 2 = 30 - 10 = 20

So, 5(6 - 2) is equal to 20 after expanding the brackets.

Remember to apply the distributive property correctly and perform the multiplication accurately to get the correct result when expanding brackets.

I hope this explanation helps you understand how to properly expand brackets in 6th grade math. If you have any further questions, feel free to ask!