80
10,000,000
54 is the standard form.
1.86 times 10 to the 5th power = 186,000
The way you wrote it is the standard form.
80
10x4
10,000
3 to the 5th power (35) in standard form is 243
108 is written in standard form as 100,000,000
10,000
230
1,024
10,000,000,000,000,000
4,800,000
196
3.100