Numbers to 100 and Place Value · Number and Operations

Addition and Subtraction Within 100

Performing operations with larger numbers using place value strategies without formal regrouping initially.

Key Questions

  1. 1How can we use what we know about small numbers to add large numbers?
  2. 2When adding 10 to a number, why does only the tens digit change?
  3. 3How can we break a large addition problem into smaller, easier steps?

MOE Syllabus Outcomes

MOE: Addition and Subtraction - P1
Level: Primary 1
Subject: Mathematics
Unit: Numbers to 100 and Place Value
Period: Number and Operations

Suggested Methodologies

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