https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/8763809Edit ImageSaveSaveEditCropCustom TextChildren Calculating Gains In Weight. At the blackboard, school children determine changes in their weight through the comparison of present and past weights. Original public domain image from FlickrMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseEditorial use only JPEGLandscape Card 7 x 5" JPEG 2000 x 1435 px | 300 dpiLarge JPEG 3077 x 2207 px | 300 dpiFree DownloadChildren Calculating Gains In Weight. At the blackboard, school children determine changes in their weight through the comparison of present and past weights. Original public domain image from FlickrMore