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3 votes
Need some help on this please

Need some help on this please-example-1

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7 votes
If you count from -10 to 10 on the line, the answer is 20.


You can also use 0 as a middle point so -10 is 10 spaces away from 0 and 10 is 10 spaces away from 0 so 10 + 10 = 20.
User Orellabac
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3 votes
The answer is 20 since you are going forward 20; trying to find the space in between. 
User Acn
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