Significant Figures in Addition & Subtraction

Learn how to round addition and subtraction answers to the correct number of sig figs with just ONE RULE: The answer cannot have more digits before or after the decimal than any of the original numbers. Related Units: Studying sig figs? Here's the full playlist:    • Significant Figures, Rounding, & Measureme...   If you want a strong foundation for chemistry, watch the full playlist:    • Gen Chem Foundations: Unit Conversions, Si...   If you're studying early atomic theory, this playlist is your friend:    • Atomic Structure & Theory: Protons, Neutro...   If you're studying for the MCAT:    • MCAT Chemistry Review: General & Organic C...   🧪Support free education & more through Patreon!   / chemistryinanutshell   🔬As an Amazon Affiliate, I earn from qualifying purchases at no extra cost to you. Start any shopping journey here: https://amzn.to/3IXuAcS Time Stamps: 0:00 Introduction 0:35 The Rule 1:18 Example Problem - Sum of Two Masses 4:57 Practice Problems #SignificantFigures #SigFigs #Chemistry