# 1  out of 30 Questions

 

 

0

4 + 0 =  

Total
30

15

-9

-8

-7

-6

-5

-4

-3

-2

-1

0

   

15   

+

++

-

- -

+-

x

+-x

÷

+-x÷

****

How Many

5

10

20

30

50