Convert these numbers between standard form and normal numbers

Question 1:

5.04× 10 3
5040

Question 2:

2.72× 10 6
2720000

Question 3:

4.33× 10 -4
0.000433

Question 4:

5940000
5.94× 10 6

Question 5:

859000
8.59× 10 5

Question 6:

0.000908
9.08× 10 -4