Subtract-Subtract Problems with Visuals
1st Grade Math practice: There were 15 birds in a tree. 5 flew away in the morning. Then 3 more flew away in the afternoon. How many birds are left. Part of extension: two-step word problems (Extension: Two-Step Word Problems).
~10 min
This story has two 'taking away' actions. Solve one part, then use that answer to solve the next.

