Find the value of |-2| + |-1| + |0| + |1|___

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Solution

$∥$ is the symbol for modulus function.It is also known as absolute value function.

Modulus of a number gives its distance from origin.

So |-2| = 2, because -2 is 2 units away from the origin.

$\Rightarrow$ similarly, |-1| = 1

|0| = 0
|1| = 1

$\Rightarrow$ |-2| + |-1| + |0| + |1| = 2 + 1 + 0 + 1= 4

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