This section gives you mixed practice with:
All the answers are nonnegative.
For example, you might be asked the subtraction problem
$\,7 - 3\,$,
but you won't be asked
$\,3 - 7\,$.
All the answers are whole numbers.
For example, you might be asked the division problem
$\,\frac{35}{7}\,$,
but you won't be asked
$\,\frac{7}{35}\,$.
Since this is algebra, there might be some variables thrown in!
For example, you might be asked for
$\,3x + 5x\,$ or
$\,\frac{60t}{10}\,$
.
(There's also a way to opt out of seeing any variables.)
Of course, no calculator is allowed!
The goal is to get confident and quick with these basic arithmetic facts.