Learnova
Library
Mathematicsbeginner

Thinking in Numbers

Build number sense you can use out loud: estimate fast, read percentages honestly, and keep proportions straight.

3 lessons48 min totalup to 173 XP

Lessons

  1. 1The Power of Estimationnext upGet usefully close in seconds — and learn why 'close' is often the better answer.easy14 min+55 XP
  2. 2Percentages You Can FeelPercentage points versus percent, why discounts don't undo each other, and how to spot a misleading claim.medium16 min+60 XP
  3. 3Ratio, Scale & the Squaring TrapKeep proportions fixed while sizes change — and discover why doubling a pizza's width quadruples the pizza.medium15 min+58 XP