One Atta Time Flash Cards Distance Learning Create New Sheet Select a Worksheet > Version 1 Version 2 Version 3 Version 4 Version 5 Version 6 Version 7 Version 8 Version 9 Version 10 Grab 'em All Creating Groups of 100 2nbt1a Count by tens to find how many items are in a set of ten-bundles.Use groups of ten to make and recognize 100 as 10 tens.
