TASK DEFINITION: In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
PROBLEM: Some bird feeders have _ perches at all, but neither do tree trunks.

SOLUTION: no

PROBLEM: Most cats have only _ to five toes per paw, depending on whether it is the front or back paw.

SOLUTION: four

PROBLEM: Moons have a bell size of around _ to eighteen inches.

SOLUTION:
six