One box has 10 pencils. How many pencils in 5 boxes?

(a)  

 $18\div3$  

(a)  

 $70\times70$  

(a)  

The product of 6 and 3 is?

(a)  

 $2^2+\ ?\ =9$  

(a)  

1, 4, 9, 16 (a)  

 $\frac{15}{3}$  

(a)  

Five tricycles have (a)   wheels?

 $5^2+10$  

(a)