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OCR GCSE Maths: Approximations and Significant Figures

Author Zak  |  Date 2024-10-26 06:32:19  |  Category Maths
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Approximations and Significant Figures

Introduction

In everyday life, we often encounter numbers that are too long or complex to work with easily. This is where approximations and significant figures come in. These techniques help us simplify numbers while maintaining a reasonable level of accuracy.

Rounding to the Nearest Whole Number

Rounding to the Nearest Decimal Place

Significant Figures

Significant figures represent the reliable digits in a number. They tell us how precise a measurement is.

Rounding to Significant Figures

Real-Life Applications

Remember: The choice of rounding or using significant figures depends on the context and the level of accuracy required.