Integer cruncher: addition and subtraction

Learning Material  |  Interactive Lesson

Use counters to model the addition and subtraction of integers. For example, (-2)+(+5)=(+3) or (-2)–(-5)=(+3). See the calculations represented in an alternate form on a number line. This learning object is one in a series of four objects.
1. Students use a counter model to perform addition and subtraction of integers.
2. Students use conventional representation of integers and mathematical notation.

Curriculum Information

K to 12
Grade 7
Numbers and Number Sense Patterns and Algebra
Educators, Learners, Students

Copyright Information

Education Services Australia
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