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Pre-Algebra Examples

Popular Problems

Evaluate 16-(-4)

$16 - (- 4)$

Step 1

Multiply $- 1$ by $- 4$ .

$16 + 4$

Step 2

Add $16$ and $4$ .

$20$

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$

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