Round off 507,506 to three significant figures.

Question

Quizplus · Accepted Answer

To round to three significant figures, we look at the digit at the fourth place. If it is greater than or equal to 5, we round up the third digit, and if it is less than 5, we just keep the third digit. In this case, the digit at the fourth place is 6, which is greater than 5. Therefore, we round up the third digit, which is 7. The resulting number is 508. We also need to include the power of 10 to indicate the scale of the number, which is 10 to the power of 5. Therefore, the final answer is 5.08 x 10^5. Choice D is the only option that represents this answer.

Round Off 507,506 to Three Significant Figures