Here is a Turkey themed way to assess student understanding of rounding and estimating sums and differences. Included in this file are 2 bump games and a 24 question Scoot game. Please download the preview file for the rounding to the nearest ten Bump game.
The other Bump board has students rounding to the nearest 100.
Also included are 24 task cards and a recording sheet that can be used to play scoot or used as an independent math station. The task cards have students rounding and estimating sums and differences.
Both activities fit Common Core standard 3.NBT 1