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 Pin It 4s 2oa2 Practice adding 4 to numbers from 1 to 10.Memorize and recall the addition facts in the 4s family quickly.Build speed and accuracy with simple mental addition.
