Estimation Expedition: How to Solve Word Problems with Approximate Sums and Differences
TL;DR: Estimating sums and differences is a fair trade: you give up a tiny bit of accuracy and get a much faster answer in return — one you can do entirely in your head. Round each number to something friendly (usually the nearest whole, ten, or hundred), then add or subtract those rounded numbers. The […]
How to Master Decimals: From Words to Numbers!
Decimals are a way to represent parts of a whole. They are especially useful when we want to talk about values that are less than one whole unit. In our daily lives, we often use decimals when dealing with money, measurements, and more. But sometimes, decimals are conveyed in words rather than numbers. In this […]
