Mathematics
Grade-7
Easy
Question
The opposite number of – 3 is______
- 1
- 3
- 4
- 5
Hint:
Two numbers are said to be opposite, if their sum add up to 0.
The correct answer is: 3
We are asked to find the value of -3. Let that be x . So, we have
. Solving the equation, we get:
![negative 3 plus x equals 0
x equals 3](data:image/png;base64,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)
Hence, the correct answer is option b.
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