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### 8 Cards in this Set

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• Back
 addend An addend is a number to be added. A.M. A.M. is a name for time from 12:00 midnight to 12:00 noon. acute triangle An acute triangle is a triangle that has 3 acute angles. acute angle An acute angle is an angle that is less than a right angle. angle An angle is a figure formed by 2 rays with the same endpoint. Associative Property of Addition The Associative Property of Addition states that when adding, the grouping of the addends does not change the sum. area The area of a closed figure is the amount of surface enclosed by the figure, measured in square units. array An array is a display of a group of objects or symbols arranged in rows or columns.