Grade 2 Add and subtract within 20 practice
KangarooKiddo has 265 reviewed math practice questions for 2nd grade students working on add and subtract within 20 (Common Core 2.OA.B.2). Your kid practices it in short daily sessions, with a quick teach-first lesson, instant feedback, and points they trade for rewards you control.
Fluently add and subtract within 20 using mental strategies. By end of Grade 2, know from memory all sums of two one-digit numbers.
How KangarooKiddo teaches it
Sessions are short and end on purpose. Your child gets a 30 to 90 second lesson, then a handful of questions matched to where they are, with a gentle hint and a retry on a miss. The parent dashboard shows whether add and subtract within 20 is mastered, practicing, or needs work, mapped to the real standard.