Basic Math Examples

$\sqrt{4} - 1^{2} - 0.2$

Step 1

Simplify each term.

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Step 1.1

Rewrite $4$ as $2^{2}$ .

$\sqrt{2^{2}} - 1^{2} - 0.2$

Step 1.2

Pull terms out from under the radical, assuming positive real numbers.

$2 - 1^{2} - 0.2$

Step 1.3

One to any power is one.

$2 - 1 \cdot 1 - 0.2$

Step 1.4

Multiply $- 1$ by $1$ .

$2 - 1 - 0.2$

Step 2

Simplify by subtracting numbers.

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Step 2.1

Subtract $1$ from $2$ .

$1 - 0.2$

Step 2.2

Subtract $0.2$ from $1$ .

$0.8$