Convert these numbers between standard form and normal numbers

Question 1:

1.96× 10 6
1960000

Question 2:

5.35× 10 5
535000

Question 3:

9.9× 10 -3
0.0099

Question 4:

47500
4.75× 10 4

Question 5:

372000
3.72× 10 5

Question 6:

0.0053
5.3× 10 -3