In the previous articles we studied about the number line and integers. In this article we will explain what opposite numbers are, and how to identify them.
In the previous articles we studied about the number line and integers. In this article we will explain what opposite numbers are, and how to identify them.
Opposite numbers are numbers that when added together result in the number .
The opposite of a number has the same absolute value, but with opposite sign.
Examples:
What is the opposite number of \( -7 \)
As we have already studied in previous articles, in positive numbers, the plus sign can be omitted.
So it is that:
As we have already said, when we add two opposite numbers, the result is .
Examples:
Also when we add the result is zero. Therefore, the number opposite zero is zero itself. This is a special case.
2. Create addition operations, in which the result of each one of these will give us .
3. Fill in the blanks, to get the number opposite the number shown.
4. What is the opposite of the following numbers?
5. Based on what you have learned about the topic absolute value Determine if the following pairs of numbers are opposites:
What is the opposite number of \( 5 \)
What is the opposite number of \( 87 \)
What is the opposite number of \( 0.7 \)
Positive and negative numbers and zero
Elimination of parentheses in real numbers
Addition and subtraction of real numbers
Multiplication and division of real numbers
On the Tutorela blog you will find a variety of articles about mathematics.
The opposite numbers or also called symmetric numbers are those that have the same number, but with opposite sign, we can also define them as those numbers that are at the same distance from zero on the number line. For example, in the following line we have and these two numbers are symmetrical, since they have different signs and are at the same distance from zero.
What is the opposite number of \( -\frac{8}{7} \)
What is the opposite number of \( -0.25 \)
\( (+71)+(-18)= \)
They mean that they are at the same distance from zero, opposite numbers mean that they have the same quantity but with different signs, for example: and or and .
In order to find the opposite or symmetric numbers we just write the same number but with the opposite sign, for example we are going to write the opposites of the following numbers:
What is the opposite number of
What is the opposite number of
What is the opposite number of
What is the opposite number of
What is the opposite number of
\( (+43)-(+15)= \)
\( (+\frac{18}{6})-(-\frac{1}{4})= \)
\( (-\frac{2}{4})-(+3.5)= \)