Answer: Three. Explanation: When counting the number of significant figures in a decimal number, you start counting from the right of the decimal point. 0 .00203 Counting from left to right from the decimal point , there are 5 digits. However, the zeroes before any natural number is not counted as a significant figure. 0.00 203 Thus, there are 3 significant figures ie. 203. Note: any other numbers added to the right of 0.00203 is also counted as a significant number. eg. 0.002031 has 4 significant figures. eg. 0.002030 has 4 significant figures.
