The Power of Place Value · Number Sense

Building Hundreds, Tens, and Units

Using concrete materials to represent and rename numbers within 200.

Key Questions

  1. 1Why is the digit 1 worth more in 105 than it is in 51?
  2. 2How many different ways can we rename 124 using only tens and units?
  3. 3What happens to a number's value when we place a zero in the tens column?

NCCA Curriculum Specifications

NCCA: Primary - NumberNCCA: Primary - Understanding and recalling facts
Class/Year: 2nd Year
Subject: Foundations of Mathematical Thinking
Unit: The Power of Place Value
Period: Number Sense

Suggested Methodologies

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