Question

Express this number in scientific notation.
0.0013?

Answer 1

1.3x10^-3

Explanation:

if you make the number bigger then you add a negative sign to your answer and since we moved the decimal 3 spaces to left to make it bigger, it is 10^-3

Answer 2

1.3*10^-3

Explanation:

When using scientific notation, if you are moving to the left it is a positive exponent. If you are moving to the right it is a negative exponent. since we moved the decimal point to the right, the exponent will be negative.