Dollars and Sense: Rounding and Estimating Posted on March 11, 2011 by alicemercer Please go to the following activities: Cyberchase . Games . Glowla’s Estimation Contraption | PBS Kids Cyberchase . Games . Space Coupe to the Rescue | PBS Kids Photo Credit: Ruler – Plastic Inches by Biking Nikon OGG, on Flickr