Mathematics
Grade-7
Easy
Question
Compute: 1 + (-2) + (-3) + (-4).
- -6
- -7
- -8
- -9
Hint:
During addition and subtraction, we collect the terms of the same sign and add them. Then finally we subtract the terms of different signs and then assign the sign of the greatest number.
The correct answer is: -8
The given expression is 1 + (-2) + (-3) + (-4).
The terms with the same sign are: (-2) + (-3) + (-4). Adding them, we have: -(2+3+4)=-9
Now, we have:1+(-9)=1-9=-8
Hence, the correct answer is -8. Option c is the correct option.
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