Kindergarten Compose and decompose teen numbers practice
KangarooKiddo has 72 reviewed math practice questions for kindergarten students working on compose and decompose teen numbers (Common Core K.NBT.A.1). Your kid practices it in short daily sessions, with a quick teach-first lesson, instant feedback, and points they trade for rewards you control.
Compose and decompose numbers from 11 to 19 into ten ones and some further ones (e.g., 18 = 10 + 8).
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 compose and decompose teen numbers is mastered, practicing, or needs work, mapped to the real standard.