sugar-calculate-activity binary package in Ubuntu Precise i386

 Sugar is a graphical user interface aimed at children.
 .
 Originating as intregral part of the OLPC "XO" a.k.a. the $100 laptop,
 Sugar has since grown into a more widely usable low-ressource desktop
 environment for kids.
 .
 This package contains the calculate activity, providing a generic
 calculator. The interface provides the simplest functions directly and
 should therefore be easy to use for the youngest children. However, it
 does support more complicated math and variables.

Source package