AAA Math
Aaa Math: Rounding Numbers to the Nearest Thousand
Students can practice rounding numbers to the nearest thousand through a series of self-check exercises and timed learning games.
AAA Math
Aaa Math: Subtraction Using Estimation
This site explains how to estimate differences by rounding. Games and exercises are provided to practice the skill.
AAA Math
Aaa Math: Addition Using Estimation
This site explains how to estimate sums by rounding whole numbers. Games and exercises are provided to practice the skill.