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Properties and patterns in arithmetic
Math is full of properties and patterns that will keep emerging as you explore it (this is what makes math so beautiful). We begin to just scratch the surface in this tutorial!
Common Core Standards: 3.OA.B.5, 3.OA.D.9
Use pictures and practice problems to see commutativity in multiplication.
Change the order of numbers or decompose numbers to simplify multiplication problems.
Solve multiplication problems by changing the order of factors, grouping of factors, or by decomposing the factors.
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?
Learn how to spot a pattern in a sequence of numbers, such as 3, 6, 9, 12...
Identify arithmetic patterns (including patterns in the addition table or multiplication table), and explain them using properties of operations.
Read a multiplication table, and fill in the missing pieces.
Practice discovering and explaining patterns in multiplication tables.