Subtraction using the count back strategy.
There are a number of different ways to learn how to do subtraction problems. This poster breaks down the connection between subtraction and counting back on a number line.
Print it out on tabloid size and laminate it so it can be seen easily in your classroom.
Common Core Curriculum alignment
Represent addition and subtraction with objects, fingers, mental images, drawings1, sounds (e.g., claps), acting out situations, verbal explanations, expressions, or equations.
Solve addition and subtraction word problems, and add and subtract within 10, e.g., by using objects or drawings to represent the problem.
Understand subtraction as an unknown-addend problem. For example, subtract 10 - 8 by finding the number that makes 10 when added to 8.
Relate counting to addition and subtraction (e.g., by counting on 2 to add 2).
Add within 100, including adding a two-digit number and a one-digit number, and adding a two-digit number and a multiple of 10, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship b...
Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.
We create premium quality, downloadable teaching resources for primary/elementary school teachers that make classrooms buzz!
Request a change
You must be logged in to request a change. Sign up now!
Report an Error
You must be logged in to report an error. Sign up now!