multiplication
square roots
witch is grater
addition
100

2x9

18

100

square root of 49 

64

100

which is grater  3/4 or 7/ 16 

3/4

100

1+2 

= 3

200

12x2

24

200

square root of 9

3

200

witch is grater 2/4 or 3/5  

3/5 


200

8+8

= 16

300

5x5

25

300

square root of 225

15


400

6x6

36

400

square root of 400 

400