Math · 4th grade · Big Number Basin
Add & subtract big numbers
Practise add & subtract big numbers in TernQuest →What is “Add & subtract big numbers”?
Add & subtract big numbers is a 4th grade math skill in the Big Number Basin region of the TernQuest map — huge numbers, comparing & multi-step missions. It is aligned to California Common Core standard 4.NBT.4. Children work through 24 grade-tagged questions at the recall level (quick recall), and Pip the tern offers a hint — never the answer — when they get stuck.
How does it unlock?
Skills on the map unlock in order: finishing the skill before this one with a mastery score of 60 or more opens add & subtract big numbers. A grown-up can also assign it directly from the dashboard, and teachers can assign it to a whole class with a join code.