Friendly fractions only — denominators that divide 100, so every answer is a whole number. Estimate first, then the whole is split into equal parts, then one part is named for you. You work out the rest.
Mild
Friendly fractions, then percentages that stop but are not whole — like 12.5%. Some go past one whole. Same three steps: estimate, split, one part named.
Medium
Five friendly, five terminating, then five recurring — percentages that never stop, like 33⅓%. Improper fractions throughout.
Spicy
The same questions as Medium, with no number line at all. Just the fraction and the answer box.