Bundling into tens
Grades 3–4The big idea
We bundle ten ones into one ten so big amounts stay easy to hold.
Think of it like rubber-banding ten straws into a bundle: Once you band ten loose straws together, you count bundles instead of a messy pile.
Band the straws
You have 23 loose straws, hard to keep track of. Band ten together, then ten more. Now you hold 2 bundles and 3 loose straws. Much easier.
Wonder out loud
These are good questions to ask: yourself, a grown-up, or your math helper.
Ask your math helperon this device · private
Hi! I help you see why the math works. Tap a question to start: