My Dear Aunt Sally

3.0

Neil Rohan

0.00

0 reviews

100+
Downloads

Free

Please Excuse MY DEAR AUNT SALLY helps students remember the Order of Operations

iOS version

About My Dear Aunt Sally

My Dear Aunt Sally is an education app developed by Neil Rohan.

Download Statistics

My Dear Aunt Sally has been downloaded 200 times. In the last 30 days, the app was downloaded 0 times.

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The app has no ratings yet.

App Information

My Dear Aunt Sally is FREE to download. The APK download size is 9.94 MB. The latest version available is 3.0. The last update was on January 8, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on Google Play July 2021.

Description

PEDMAS is an acronym that is taught in elementary school classrooms across the nation. It helps students remember the priority, or Order of Operations, used to solve expressions involving strings of numbers and operators. It stands for:

Parenthesis
Exponent
Multiplication
Division
Addition
Subtraction

A familiar mnemonic widely used in place of PEDMAS is: Please Excuse My Dear Aunt Sally. Thus the name of this application... Kind of an inside joke for the mathematical types.

Computers, including smart phone calculators, desktops, etc. have built in functionality to properly interpret such expressions so we don't have to. But have you ever wondered what algorithms the CPU executes to get the right answer every time? This app demonstrates one such algorithm called the Shunt Yard, developed a few years back by Professor Edsger W. Dijkstra.

We’re going to take a closer look under the hood at Order of Operations algorithms. It will interest programmers and school students alike; for programmers, the use of queues and stacks will reinforce previous computer science learning; for students, it allows them to write an expression, then analyze it using Order of Operations rules, step by step. The Quiz mode generates random expressions of user selected lengths and magnitudes and checks the student's answer. Incorrect answers can be examined using the same step by step process.

In the SOLVE mode, algebraic expressions are entered free hand using an internal keyboard which limits entries to the five common mathematical operators (+ - / * ^) as well as one level of parenthesis. There is a maximum term limit of ten variables, but no limit to their magnitude in this mode.

In the QUIZ mode, between two and ten variables can be selected, their maximum value and which operators that are eligible. The program then randomly generates an algebraic expression using these parameters.

Both modes make available an analysis page which is used to step through the solution. Stack/Queue dynamics are displayed.

Recent changes:
16k memory upgrade;added Share capability;edge issues solved

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More data about My Dear Aunt Sally

Price	Free to download
Total downloads	200
Recent downloads	0
Rating	No ratings
Ranking	Not ranked
Version	3.0
APK size	9.94 MB
Number of libraries	?
Suitable for	Everyone
Ads	NO ads

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Common keywords of similar apps

Students Dear Aunt Sally Operators Excuse Helps Remember Pedmas Parenthesis Algorithms Answer Programmers Quiz Generates Selected Algebraic Maximum Limit Ten Variables Step Order Operations Expressions Mode School Solve Mathematical Expression

Keywords missing from this app

Math App Calculator Arithmetic Scientific Multiplication Learning Calculation Practice Basic Learn Calculations Number Mental Recent Problems Time User Level Exponents Simple Easy Tool Training Notation Skills Operation Addition History Quick Powers Subtraction Game Children Division Choose Perfect Calculate Select Set Questions

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My Dear Aunt Sally has been downloaded 200 times. Over the past 30 days, it has been downloaded 0 times.

Changelog of My Dear Aunt Sally

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Developer information for Neil Rohan

Neil Rohan

nrohan49@gmail.com

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Technologies used by My Dear Aunt Sally

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