what is 0.007 in standard form?

Answer 1

To convert a number to standard form:

write out the number starting with the first non-zero digit and continue until the last non-zero digit;

put the decimal point after the first digit (if there is only 1 digit, the decimal point does not need to be written);

count how many digits the decimal point needs to move to get back to where it was originally (if there was no decimal point as the number was a whole number it was "hiding" after the ones-digit, the last digit);

if the decimal point needs to move left make this count negative;

write ×10 to the power of this count after the number written in step 2.

For 0.007 this gives 7 × 10⁻³

Answer 2

Decimal numbers in standard form are the simplest form, that can be easily read and written. For example, the standard form of decimal number 0.007 is 7 × 10-3.