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Opposite numbers - Examples, Exercises and Solutions

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.

What are opposite numbers, and how to identify them?

Opposite numbers are numbers that when added together result in the number $0$ .

The opposite of a number has the same absolute value, but with opposite sign.

Examples:

$+3$ and $-3$ are opposite numbers.
$+9.4$ and $-9.4$ are opposite numbers.
$+\frac{1}{4}$ and $-\frac{1}{4}$ are opposite numbers (fractions).

B - What are opposite numbers, and how to identify them

Practice Opposite numbers

Question 1

What is the opposite number of $$ 0.7 $$

Question 2

What is the opposite number of $$ 87 $$

Question 3

What is the opposite number of $$ 5 $$

Question 4

What is the opposite number of $$ -7 $$

Question 5

$$ (+43)-(+15)= $$

Examples with solutions for Opposite numbers

Exercise #1

What is the opposite number of $0.7$

Video Solution

Answer

$-0.7$

Exercise #2

What is the opposite number of $87$

Video Solution

Answer

$-87$

Exercise #3

What is the opposite number of $5$

Video Solution

Answer

$-5$

Exercise #4

What is the opposite number of $-7$

Video Solution

Answer

$7$

Exercise #5

$(+43)-(+15)=$

Video Solution

Answer

$28$

Question 1

$$ (+71)+(-18)= $$

Question 2

What is the opposite number of $$ -0.25 $$

Question 3

What is the opposite number of $-\frac{8}{7}$

Question 4

$(+0.5)+(+\frac{1}{2})=$

Question 5

$(-2^2)-(-3\frac{3}{4})=$

Exercise #6

$(+71)+(-18)=$

Video Solution

Answer

$53$

Exercise #7

What is the opposite number of $-0.25$

Video Solution

Answer

$0.25$

Exercise #8

What is the opposite number of $-\frac{8}{7}$

Video Solution

Answer

$\frac{8}{7}$

Exercise #9

$(+0.5)+(+\frac{1}{2})=$

Video Solution

Answer

$1$

Exercise #10

$(-2^2)-(-3\frac{3}{4})=$

Video Solution

Answer

$-\frac{1}{4}$

Question 1

$(-\frac{2}{4})-(+3.5)=$

Question 2

$(+\frac{18}{6})-(-\frac{1}{4})=$

Question 3

$(-3\frac{2}{6})+(-2.75)=$

Question 4

$(+2.16)+(-4\frac{1}{16})=$

Question 5

$$ (+x^2)+(-9)= $$

Exercise #11

$(-\frac{2}{4})-(+3.5)=$

Video Solution

Answer

$-4$

Exercise #12

$(+\frac{18}{6})-(-\frac{1}{4})=$

Video Solution

Answer

$3.25$

Exercise #13

$(-3\frac{2}{6})+(-2.75)=$

Video Solution

Answer

$-6\frac{1}{12}$

Exercise #14

$(+2.16)+(-4\frac{1}{16})=$

Video Solution

Answer

$-1.90625$

Exercise #15

$(+x^2)+(-9)=$

Video Solution

Answer

$x=±3$

Topics learned in later sections