What is $1 + 2 - 3 + 4 - 5 + 6 - 7 + 8$ ?

2

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3

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4

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6

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Solution

The correct option is D $6$
$1 + 2 - 3 + 4 - 5 + 6 - 7 + 8$
$= 3 - 3 + 4 - 5 + 6 - 7 + 8$
$= 0 + 4 - 5 + 6 - 7 + 8$
$= 4 + 1 - 7 + 8$
$= 5 + 1$
$= 6$
Thus, the correct answer is $6$ .

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What is 1+2−3+4−5+6−7+8 ?

The correct option is D 61+2−3+4−5+6−7+8=3−3+4−5+6−7+8=0+4−5+6−7+8=4+1−7+8=5+1=6Thus, the correct answer is 6.

What is $1 + 2 - 3 + 4 - 5 + 6 - 7 + 8$ ?

The correct option is D $6$
$1 + 2 - 3 + 4 - 5 + 6 - 7 + 8$
$= 3 - 3 + 4 - 5 + 6 - 7 + 8$
$= 0 + 4 - 5 + 6 - 7 + 8$
$= 4 + 1 - 7 + 8$
$= 5 + 1$
$= 6$
Thus, the correct answer is $6$ .