ParaPro Assessment Practice Exam 2025 - Free ParaPro Practice Questions and Study Guide

When dividing a number by 0.5, it can be understood as finding out how many 0.5s are in that number. Mathematically, dividing by a fraction is equivalent to multiplying by its reciprocal. Since 0.5 is the same as 1/2, dividing by 0.5 is the same as multiplying by 2 (the reciprocal of 1/2).

For instance, if you have the number 10 and you divide it by 0.5, you are essentially calculating how many halves fit into 10. This can be shown as:

10 ÷ 0.5 = 10 × 2 = 20.

This demonstrates that when you divide a number by 0.5, you are effectively doubling that number, which aligns with the correct answer of multiplying by 2.