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 4 Digit Plus 4 Digit 4nbt4 Add two four-digit numbers to find the total.Use carrying (regrouping) when a place value adds to 10 or more.
