About Place Value Quest
Why it was built
Place Value Quest started with a simple problem: a child who could read 139 perfectly, but couldn’t say what the 3 was worth. The missing piece wasn’t more practice — it was a picture of how numbers are built.
What it is
A free browser game with ten worlds, from Ones Village to the Number Kingdom. Children build numbers from blocks, trade ten for one, send digits through a Digit Machine, ride a Number Elevator to a million, and solve number mysteries — guided by Digi, a friendly robot.
Who it’s for
Children aged about 7 to 10 who are learning place value, and the parents and teachers helping them.
The approach
Every number is shown first as blocks, then on a place-value board, and only then as written digits and parts. Mistakes are explained rather than marked wrong. Read how it works and the learning approach for the details.
Free, private, no ads
There are no accounts, ads or purchases, and no personal data is collected. See the privacy policy.