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Basic Math
Arithmetic
Fractions & Decimals
Ratios & Proportions
Percentages
Basic Number Theory
Pre-Algebra
Integers & Absolute Values
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Functions & Graphs
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Example
3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b
Question
$$-82-(-90)$$
Evaluate
$8$
Solution Steps
The opposite of $-90$ is $90$.
$$-82+90$$
Add $-82$ and $90$ to get $8$.
$$8$$
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Factor
$2^{3}$
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