Sumtree Calculator

A calculator that displays an interactive tree for the
mathematical expression you type in.
The branches in the tree can be solved to get to the
answer and back again.

This app is useful to show the order in which
mathematical expressions should be executed.
Teachers around the word use the acronyms PEDMAS
or BODMAS to help students remember the order.


PEDMAS
Parenthesis
Exponential
Division
Multiplication
Addition
Subtraction

BODMAS
Brackets
Order
Division
Multiplication
Addition
Subtraction