Number Line Pattern Recognition: Identifying the Missing Value

What number appears at the point marked in red?

AAA-6-6-6BBB-3-3-3CCC000DDDEEE666FFF999GGG121212HHH151515

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1

Understand the problem

What number appears at the point marked in red?

AAA-6-6-6BBB-3-3-3CCC000DDDEEE666FFF999GGG121212HHH151515

2

Step-by-step solution

Let's pay attention to the numbers on the axis from left to right:

−6,−3,0,?,6,9,12,15 -6,-3,0,?,6,9,12,15

We'll try to find the common denominator.

Note that if we use the operation 3+, we'll reach the sequence of numbers:

−6+3=−3 -6+3=-3

−3+3=0 -3+3=0

6+3=9 6+3=9

9+3=12 9+3=12

12+3=15 12+3=15

Therefore, the question mark will be the following exercise:

0+3=3 0+3=3

3

Final Answer

3

Practice Quiz

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All negative numbers appear on the number line to the left of the number 0.

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