Exercise 12

Evaluate the following.

  1. \(\displaystyle{ \left\lvert 4 \right\rvert = }\)

  2. \(\displaystyle{ \left\lvert -2 \right\rvert = }\)

  3. \(\displaystyle{ \left\lvert 0 \right\rvert = }\)

  4. \(\displaystyle{ \left\lvert {20+\left(-8\right)} \right\rvert = }\)

  5. \(\displaystyle{ \left\lvert {-9-\left(-3\right)} \right\rvert = }\)

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