Not sure what you mean by "express" form. But I assume you want the regular form.
4.009x10^-3 is 0.004009. Because 10^-3 means move the decimal to the left 3 digits.
Chat with our AI personalities
It would be 5.04x103
60 and 7
0.2
In exponenet form, it would be 3.3415 x 105
Writing a number in standard form simply means to express the number in its 'normal' form. Therefore, your example is written in standard form as: 25