What are even and odd numbers? What happens when you add two even numbers? Two odd numbers? How about one odd number and one even number?
Math patterns 1 is a free educational video by Khan Academy.It helps students in grades 3 practice the following standards 3.OA.D.9.
1. 3.OA.D.9 : Identify arithmetic patterns (including patterns in the addition table or multiplication table), and explain them using properties of operations. For example, observe that 4 times a number is always even, and explain why 4 times a number can be decomposed into two equal addends. .
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