Write the next sentence in the following story.

How to memorize the perfect squares in math
Get a stack of index cards.
You will need one for as many perfect squares you want to memorize. Start simple with 10 cards, then add another 10 as your memory improves.

pick from the following. 1). Make sure that the drawing cards you use are clearly marked. For example, you might have the joker, jack, and queen.. 2). Note that you will also need 8 cards for each square. Which edge does the edge of a square come from? Think of in terms of how a standard square looks.. 3). You don't need to get the whole stack you started with back to back! You will be using 5 of these, so round up the scores accordingly. As with all other math assignments, it's best to be sure to have at least 5 cards and just choose cards that you like.. 4). Write the root numbers on the front of the card. Make the numbers large enough to read from a few feet away... The answer should be
4).