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There are two addition strategies cards included. Both allow students to use their knowledge of doubles to 18 to solve unknown facts. The cards visually guide students into using a strategy to solve addition problems.
In "Near Doubles", students compare the addends using the doubles equation as a reference. In "In-Betweeners", students find the number that is in-between the addends on the number line and double it.
The file includes 40 cards that can be printed double sided and laminated to use with dry erase pens. They make an excellent Math center.
A review of theses cards would be greatly appreciated.