2.3 x 2.1

(a)  

$$5.16\ \div0.8$$

(a)  

Evaluate

$$5^3$$

(a)  

485 x 34

(a)  

Evaluate

$$10^4$$

(a)  

6.34 x 8.21

Round to the nearest hundredth

(a)  

10.492 + 6.36

(a)  

$$23.2\div5$$

(a)  

23 x 28

(a)