Find the distance between -3 and +8 on the number line. Write your answer as a number sentence using absolute value. My answer was |-3| + |8| = 11 but it was marked incorrect. Thanks for your help.

Question

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Answer 1

On the number line, 8 is eight places to the right of zero and 3 is three places to the left of zero; therefore, the distance between them is 3 plus 8 which is 11, written as 8-(-3)=8+3=11. Your answer is correct, but perhaps you didn't express it well as a sum.