How to Estimate by Rounding Each Number to the Same Place Value?

Answer Estimating the answer to a calculation instead of solving it completely may save space, time, or effort. In return for those savings, however, accuracy is lost. When a problem requires rounding a n... Read More »

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Number Rounding & Place Value Games for Kids?

Many third-graders struggle to grasp the concepts of number rounding and place value. Teachers and home educators can help children understand the importance of place value and whether numbers shou... Read More »

Rounding Number Games for Kids?

Rounding is a critical concept in math that students experience for the first time in elementary school. Because this concept comes into play in high school math, on standardized tests and in colle... Read More »

How to Estimate the Number of Bags of Concrete?

For smaller concrete jobs, such as pouring a small patio or your own walkway, the average conscientious homeowner can handle the necessary material calculations from beginning to end. To estimate t... Read More »

How to Estimate the Number of Dots on a Basketball?

Why would anyone want to count the little nubs on a basketball? You certainly don't need to know how to play the game, but if you're curious, it's a good exercise in approximation and geometry.