Write the numbers in scientific notation.
0.0004
Step 1. Moving the decimal point four places to the right.
0.0004=4×0.0001
Step 2. The number is between 0 to 10. So, exponent is negative.
4×0.0001=4×10-4
WRITING NUMBERS IN SCIENTIFIC NOTATION
Write the number in scientific notation.
0.0021
321,000,000
0.00000625
10,700,000
0.00036