Two effective manipulatives that can be used to support fractions and base 10 learning are base 10 blocks and Cuisenaire rods. Base 10 blocks work for all basic operations of addition, subtraction, ...
Interior angles in a triangle add up to 180Ëš. Triangles close triangleA polygon with three straight sides. have three sides, therefore they have three angles. Interior angles in a triangle sum to a ...
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