Use this FREE product for adding AND subtracting within 20. These number lines will be so useful for lessons, math centers, independent work, etc. Students can use a whiteboard marker on a laminated number line and use it all year long! The number lines provide a reference for what to do when adding and subtracting. They also provide a visual of the symbols for addition and subtraction as well as numbers 0-20. The dotted font version can also be used for students that need practice writing numbers 0-20. The possibilities and uses are endless with this product!
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Tools for Tomorrow
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