The Power of Place Value and Large Numbers · Number and Operations

Rounding and Estimation Strategies

Developing flexible mental strategies for approximating values in complex calculations.

Key Questions

  1. 1When is an estimate 'good enough' for a specific purpose?
  2. 2How does rounding before an operation differ from rounding the final result?
  3. 3What logic determines which multiple of ten a number is closest to?

NCCA Curriculum Specifications

NCCA: Primary - NumberNCCA: Primary - Operations
Class/Year: 5th Year
Subject: Mathematical Mastery: Exploring Patterns and Logic
Unit: The Power of Place Value and Large Numbers
Period: Number and Operations

Suggested Methodologies

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