The Power of Place Value and Operations · Number and Operations

Rounding and Estimation

Developing a sense of number magnitude by rounding to the nearest ten or hundred.

Key Questions

  1. 1How do we decide if a number is closer to one ten than another?
  2. 2In what real life situations is an estimate more useful than an exact count?
  3. 3How does rounding help us check if our calculated answer is reasonable?

NCCA Curriculum Specifications

NCCA: Primary - NumberNCCA: Primary - Estimation
Class/Year: 3rd Class
Subject: Mathematical Explorers: Building Number and Space
Unit: The Power of Place Value and Operations
Period: Number and Operations

Suggested Methodologies

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