Stage 2 · The Four Operations & Estimation

2.6.3 Significant Figures

2.6 Approximate Numbers & Scientific Notation

Point 3 of 6

2.6.3 Significant Figures

Core idea

Counting from the first nonzero digit, the digits that truly carry weight set how solid an approximate number is.

Module goal. Learn to round, express precision and significant figures, and use scientific notation to handle large numbers, paving the way for decimals.
eastmath.com · 2.6 Approximate Numbers & Scientific Notation · 2.6.3 Significant Figures