standard_description: 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.
problem_activity: List one attribute that each of the following pairs of shapes have in common. There may be more than one correct answer.
a.   Square and rhombus
b.   Square and rectangle
c.   Square and parallelogram
d.   Square and trapezoid
e.   Square and quadrilateral


aligns: no