Approximation using Significant Figures
Explore on your own various numbers and check your understanding of how to do approximations using significant figures.
1. Click the blue or red round up or round down points on the vertical number line to find the values rounded up or rounded down.
2. From the red drop down list with the current "1 significant figure" select "3 significant figure" and repeat step 1.
3. Input a different decimal number or whole number to try again.
This is a resource adapted from Mr Alex Chik
GeoGebra 互動數學教室 http://www.geogebra.hk