CCSS.MATH.CONTENT.3.OA.D.9Identify 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.
LTI launch URL
(help)
https://schoolyourself.org/page/lti/sy/algebra/multiplicative-identities
