Estimation Strategies
📋 What it is
Rounding to friendly numbers gives a quick, close-enough answer and a check on exact work.
🗣️ Coach says
Estimation is a superpower for checking. Round to easy numbers, do the quick sum, and you get a ballpark. If your exact answer is far from the estimate, you probably slipped somewhere.
🧠 Memory hook
Round to friendly numbers FIRST. The estimate is your "does this answer make sense?" check.
😂 Giggle
Why did the two 4s skip dinner?
Because they already 8!
😲 Whoa!
Shopkeepers and pilots estimate constantly — a fast "about right" often matters more than a slow exact number.
✅ Quick check: Estimate 48 + 53 by rounding to the nearest ten.
Say your answer out loud first — then reveal.
About 100 — 50 + 50.
Rounding each number to a friendly ten gives a fast, close estimate.
🧪 Try it! (2 minutes)
Before adding a shopping list exactly, round each price and estimate the total. Then check.