Ordering standard form

This task is about ordering numbers that are written in standard form.
 
2.9 × 104 5.6 × 106 5.9 × 103 8.3 × 105 5.1 × 106 2.7 × 104
 
a) 
All the numbers in the box above are written in standard form.
List these numbers in order from the smallest to largest.
 
 
i)
 
ii)
 
iii)
 
iv)
 
v)
 
vi)
 
_______________ (smallest)
 
_______________
 
_______________
 
_______________
 
_______________
 
_______________ (largest)
 
b) i) 
 		 Circle the larger of these two numbers:   4.317 × 106   or   5.724 × 105 
 
ii)
Explain why you are able to tell this number is larger.
 
 
 
 
 
c) i) 
 		 Circle the larger of these two numbers:   4.3 × 108   or   4.17 × 108
 
ii)
Explain why you are able to tell this number is larger.