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2. “Then next we had to figure out a perfect
square between 36 and 49 and it ended up
being 42.25 because 6.5 is a terminating
decimal.”
How many perfect squares ARE there between 36 and 49?
2

3. Build Me
3

4. Build Me
This is why you need to memorize math facts.
4

5. What’s the square root of?
60
36
36
9
59.29
49
50
81
25
50.5 100
4
39.69
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6. 6

7. Square and square root are inverse operations
With numbers larger than 1,
Squaring always gets ______
Square root is always ______
With numbers between 0 and 1,
Squaring always gets _____
Square root is always _____
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8. • 1 ­ reduce
• 2 ­ if perfect square on TOP and BOTTOM,
how to reduce: then it’s a perfect square.
• divide both the top and the
bottom by common factors
until you can’t find any more
common factors. (try 2, then 3,
then 5; usually this will be
enough.)
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9. 9

10. convert to a fraction or use a calculator
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11. 11

12. 12

13. Did not use this slide in class.
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14. 14

15. Homework:
Did not use this slide in class.
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