7 + 8 = ?

(a)  

24 + 36 = ?

(a)  

21 – 7 = ?

(a)  

12 – 3 = ?

(a)  

99 – 33 = ?

(a)  

The name for this number is

(a)  

This number is

(a)  

The name of this number is

(a)  

This number is

(a)  

Do you know the name of this number?

(a)  

This number is

(a)  

The name of this number is

(a)  

What's this number?

(a)