
Current Math Topic
Understanding Addition and Subtractionpart a piece of a whole 2 and 3 are parts of 5.whole You add parts to find the whole. 2 + 3 = 5 The whole is 5.addend the numbers you add together to find the whole 2 + 3 = 5 2 and 3 are addends.subtract You can subtract a part from the whole to find the missing part. 5  3 = 2.difference The difference is the amount that is left over after you subtract. 4  1 = 3 The difference is 3.subtraction sentence A subtraction sentence is a way to show a subtraction problem. 7  3 = 4 is a subtraction sentence.
Last Modified on October 13, 2014