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2 cards from this section. Quick, good the night before a test.
List the first four triangular numbers.
Think about adding natural numbers in sequence.
What are square numbers?
Recall your multiplication table.
What result do you get when two triangular numbers are added?
Think of their arrangement.
True or False: All even numbers are square numbers.
Consider the definition of square numbers.
If a triangular number is 36, what are the last two numbers before it?
Work backward from 6.
Design a method to visualize the frequency of non-square numbers between squares.
Check how many total numbers versus non-square are listed.
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