Writing a number in standard form simply means to express the number in its 'normal' form. Therefore, the way you wrote the number is the standard form for your example.
That IS the standard form.
You write 20.7 in standard form as: 2.07 × 101
Standard form simply means to write the number: 3,000,296,556
Write in standard form 378.72
It is already in standard form.
How do write 666 in standard form?
799 = DCCXCIX
It is already in standard form.
That is the standard form.
That is the standard form!
That IS the standard form.
You write 83,539,131 in standard form as 8.3539131 × 107
You write 7.54103 in standard form as 7.54103 × 100
You write 6.11 in standard form as 6.11 × 100
You write 20.7 in standard form as: 2.07 × 101
0.9 that is how you write nine-tenths in standard form
Standard form simply means to write the number: 3,000,296,556