EXPRESSING VERY SMALL NUMBERS IN STANDARD FORM

Place the decimal point just after the first non-zero digit, followed by × 10 to the power the number of places moved from the decimal point. The movement is from the right to the left. The power of ten is negative.

Example

Write the following numbers in scientific form.

1. 0.00067
2. 0.00145
3. 0.335

Solution

1. 6.7 ×10^−4
2. 1.45×10^−3
3. 3.35×10^−1
4.