Mathematics
Grade-7
Easy
Question
The opposite number of 22 is______
- 20
- 21
- 22
- -22
Hint:
Two numbers are said to be opposite of each other, if their sum add up to 0.
The correct answer is: -22
We are asked to find the opposite number of 22. Let that be x. Thus, we have:
. Solving it, we get:
![22 plus x equals 0
x equals negative 22](data:image/png;base64,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)
Hence, the correct answer is option d.
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