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.

Example Problems
Fill in the blank:
The terms in pattern y are ____ times the terms in pattern x.

xy
84
126
168
Fill in the blank:
The terms in pattern y are _____ times the terms in pattern x.

xy
28
520
728
Fill in the blank:
The terms in pattern y are ____ more than the terms in pattern x.

xy
25
47
69
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