Base ten blocks
Use the Base Ten Blocks to build 174.
Explain how you know you correctly built the number 174.
Use the Base Ten Blocks to build 238.
In the number 238, what value is the 3?
Build any number less than 500.
What number did you build? How do you know?
Adapted from an applet created by Boaz.
https://www.geogebra.org/m/yNUEmDJa
https://www.geogebra.org/u/boazmunro