Writing a number in standard form simply means to express the number in its 'normal' form. Therefore, your example is written in standard form.
210
210
How do write 666 in standard form?
It is already in standard form.
That is the standard form!
210
210
In decimal form, 210% is 2.1.
How do write 666 in standard form?
30 + 5 + 210 = 245
210,726
It is already in standard form.
That is the standard form!
That IS the standard form.
That is the standard form.
You write 20.7 in standard form as: 2.07 × 101
You write 6.11 in standard form as 6.11 × 100