36

169

125

196

 $-\frac{24}{841}$  

 $\frac{24}{29}$  

 $-\frac{24}{29}$  

 $-\frac{576}{29}$  

4.3

21.16

4.4

4.6

 $\pm\frac{19}{2}$  

 $\pm\frac{361}{4}$  

 $\pm\frac{19}{4}$  

 $\pm\frac{361}{2}$  

because  $262\cdot262=68,644$  and that is too large of a number to record.

because 262 is NOT a perfect square, so the answer would be a messy decimal.

because 262 is a perfect square, which means you leave it as it is.

because  $16.18\cdot16.18=262$  

 $-62$  

 $62$  

 $\pm62$  

 $\pm\sqrt{62}$  

 $87$  

 $\sqrt{87}$  

 $9.3$  

 $\sqrt{9.3}$  

 $-35$  

 $-\sqrt{35}$  

 $-5.9$  

 $-\sqrt{5.9}$  

because  $35\times35=1225$  

because  $35+35=70$  and 70 is not a perfect square.

because if you multiply the two 2's in the middle you get 4.  Then subtract the 1 at the beginning which gives you 3.  Then use the 5 at the end to come up with 35.

because  $1225\div2=35$  

1

2

3

4

square root symbol first then number

number first then square root symbol

it depends on what type of calculator you are using

you actually have to push the 2nd button first

6000 and 400

80 and -80

3,200 and -3,200

2 and -3,200

42

-882

42 and -42

-42

7 and -7

6

7

8

28

 $\pm28$ 

-28

-392

51

52

53

1,404.5

the positive square root of a number

the negative square root of a number

both the positive AND the negative square roots of a number

a check mark

7.1

7.2

25.92

7.3

because  $18\times18=324$  

because  $18+18=36$  and 36 is a perfect square, just like 324. 

because if you add the 3 + 2 it equals 5.  Then you multiply that times the 4, which gives you 20.  Then you subtract the middle 2, which gives you 18.

because  $324\div2=18$