N9c – Adding and subtracting in standard form

This is the students’ version of the page. Log in above for the teachers’ version.


Adding and subtracting in standard form

In the real world

Teachers: log in to view this content.

What next?
Although there are no questions involving standard form in lesson N15a – Rounding numbers and measures to an appropriate degree of accuracy, once you have learned about rounding numbers to a given amount of significant figures, you should become comfortable with rounding numbers in standard form to a given number of significant figures. For example: \(7.286 \times 10^5\text{ rounds to }7.3 \times 10^5 \text{ to 2 significant figures}\)