# Infinite Pre-Algebra

## Test and Worksheet Generator for Pre-Algebra

Infinite Pre-Algebra covers all typical Pre-Algebra material, over 90 topics in all, from arithmetic to equations to polynomials. Suitable for any class which is a first step from arithmetic to algebra. Designed for all levels of learners from remedial to advanced.

### Included in version 2.70.06 released 1/5/2023:

- Fixed: Choices could appear incorrectly

### Included in version 2.70 released 7/8/2022:

- New: Add preferences for Metric/Imperial units
- New: Add preference to “Prefer x“ as the variable letter
- Improved: UI, security, and stability with updated libraries
- Fixed: Writing Scientific Notation – Choices could be equivalent
- Fixed: Operations in Scientific Notation – Choices could be equivalent
- Fixed: Systems of Equations Word Problems - Page width options do the opposite of what they say

### Included in version 2.62 released 2/8/2022:

- New: Print questions from Presentation View
- Improved: UI, security, and stability with updated framework and libraries
- Improved: [Mac] Dark mode
- Fixed: [Windows] - Detached topic list does not close when application is closed

### Included in version 2.61.03 released 9/10/2021:

- Improved: Minor UI improvements
- Fixed: Similar Figures Word Problems - Program could freeze
- Fixed: [Windows] Unable to change page layout to landscape
- Fixed: [Windows] Error 'Unable to load platform plugin'

### Included in version 2.61 released 8/27/2021:

- Fixed: Preferences page for Kuta Works
- Improved: Security and stability with updated networking libraries

### Included in version 2.60 released 8/19/2021:

- Improved: UI, security, and stability with updated framework and libraries
- Improved: Site licenses check expiration date more frequently
- Fixed: Transformations - Possible to have duplicate choices

### Included in version 2.52 released 6/14/2019:

- New: Scramble questions by directions
- New: Scramble all questions in assignment
- New: Consolidate question sets with identical options
- New: Regroup question sets by directions
- New: Kuta Works - Create a two semester course
- New: Kuta Works - Clone assignments from a previous course into a new one
- Fixed: Presentation View - Arrow keys could change zoom at start/end of assignment
- Fixed: Tight Layout - Directions could be cramped for no reason

### Included in version 2.50 released 4/12/2019:

- New: Kuta Works - Option to hide answers and results from students until after due date
- New: Kuta Works - Option to control how long choices are hidden
- Improved: Options windows appear at a better initial size
- Improved: Window controls shown at their native size and spacing
- Improved: Network proxy configuration window
- Improved: License activation process
- Improved: Two-Step Equation Word Problems - Changed a scenario to "lost in a move"
- Fixed: Presentation View - Answers could be cut off
- Fixed: Some window controls cut off on Windows 10 with display scaling
- Fixed: Spelling errors
- Fixed: Kuta Works - Course list could display more than just your active courses
- Fixed: Angle Relationships - Could generate identical questions
- Fixed: Writing Scientific Notation - Possible to have duplicate choices

### Included in version 2.42 released 12/11/2018:

- Fixed: Certain symbols incorrect if saved on Mac and loaded on Windows or vice versa
- Fixed: Quadrilaterals - Would generate free response when multiple choice selected

### Included in version 2.41 released 9/26/2018:

- Fixed: Archived courses in Kuta Works are now hidden
- Fixed: Generating or regenerating questions could cause a crash

### Included in version 2.40 released 8/8/2018:

- New: Integrated with Kuta Works. Now post assignments online.

### Included in version 2.25 released 4/27/2018:

- Improved: Generate questions more quickly
- Improved: Measurement arrows reach correct endpoints
- Improved: Circles - Better decimal numbers and better choices
- Improved: The Distance Formula - Avoid numbers that are too big
- Improved: Dividing Rational Numbers - Better decimal numbers
- Improved: Multi-Step Equations - Better decimal numbers and more predictable special cases
- Improved: Multi-Step Inequalities - Better decimal numbers
- Improved: One-Step Equations - Better decimal numbers
- Improved: One-Step Inequalities - Better decimal numbers
- Improved: Order of Operations - Better decimal numbers
- Improved: Squares and Square Roots - Better decimal numbers
- Improved: Two-Step Equations - Better decimal numbers
- Improved: Two-Step Inequalities - Better decimal numbers

### Included in version 2.18 released 7/31/2017:

- Fixed: Open circles on graphs were filled in when displayed as answer in red
- Fixed: Typo in sample custom question

### Included in version 2.17 released 4/27/2017:

- Improved: [Windows] "Export to clipboard as bitmap" renders image with better quality
- Fixed: Center and Spread of Data - Fixed typo

### Included in version 2.16.20 released 11/16/2016:

- Fixed: Plotting Points - Correct choice could be missing

### Included in version 2.16 released 9/16/2016:

- Fixed: Solving Proportions - Answer occasionally rounded incorrectly
- Fixed: Simple Interest - Answer occasionally rounded incorrectly
- Fixed: Numbers with many significant digits could round incorrectly
- Fixed: Customized question containing an error could not be modified
- Fixed: Customized question containing an error could cause a crash
- Fixed: Feedback tool detects Windows 10 properly
- Fixed: Mouse cursor when drag-dropping a question
- Fixed: Keyboard shortcut for changing order of question sets in assignment

### Included in version 2.15 released 7/14/2016:

- Improved: Reorder question sets by dragging and dropping
- Improved: Move individual questions within a set by dragging and dropping
- Improved: Presentation View - Commands now on a movable, dockable toolbar
- Improved: Added option for large toolbar icons
- Improved: New icons
- Fixed: Certain options could result in double parenthesis or parenthesis around a negative sign
- Fixed: Arrow over vector variable name not red when appropriate

### Included in version 2.11 released 5/13/2016:

- Improved: [Windows] "Export to clipboard as bitmap" pastes into Microsoft Word at appropriate DPI
- Fixed: Keyboard shortcut for adding space to question set

### Included in version 2.10 released 5/11/2016:

- New: Preference for including "None of the above" as a choice
- New: One column layout
- New: Added support for Infinite Precalculus
- New: Easily add piecewise functions of graphs in custom questions: Example: piecewise([2x-3] if [x<5], [x-1] if [x >= 5])
- New: Easily add functions with restricted domains to graphs in custom questions Example: function(x/2, x<0)
- Improved: More efficient layout of choices
- Improved: [Mac] Added option for legal paper in page setup
- Fixed: Spelling and grammatical errors
- Fixed: Verbal Expressions - "No variables" had no effect
**Note: Older versions will not be able to open assignments saved with this version**

### Included in version 2.06 released 8/3/2015:

- Improved: Additional scenarios for statistics
- Fixed: Crash when saving if previously used folder no longer exists

### Included in version 2.05 released 7/20/2015:

- New Topic: Applying Statistical Models
- New Topic: Scatter Plots
- Fixed: Presentation View - Displayed wrong directions in 3-up mode
- Fixed: Presentation View - Lines too long after creating new problems
- Fixed: [Windows] Crash when utilizing network if old version of OpenSSL in system path

### Included in version 2.04.40 released 3/31/2015:

- Fixed: Activation data unrecognized under special circumstances
- Fixed: [Windows] Help files broken by previous release
- Fixed: Order of Operations - Radio buttons reversed

### Included in version 2.04.20 released 3/23/2015:

- Improved: [Windows] "Export to clipboard as bitmap" uses a transparent background

### Included in version 2.04 released 3/17/2015:

- New Topic: Visualizing Data
- New Topic: Center and Spread of Data
- Improved: Better support for proxies
- Improved: Support for HiDPI Mac Retina displays
- Improved: Print options window - Some settings are now persistent
- Improved: Presentation View - Use arrow keys to navigate between questions
- Improved: Question set updates free response/multiple-choice when all questions have changed
- Improved: [Mac] Activation also checks /Library/Preferences/ks-config.txt for serial numbers
- Fixed: [Windows] Crash when printing with certain printers
- Fixed: Crash when loading an assignment with over 80 custom questions
- Fixed: Custom question answer was never choice A
- Fixed: Paper size set before printing
- Fixed: Bug allowed two-step equations and inequalities like 4(x + 1) = 8
- Fixed: Plotting Points - Radio buttons for three points and five points were backwards

### Included in version 2.03 released 9/19/2014:

- Fixed: Preference for question layout mode not correctly loaded
- Fixed: Issues with automatic spacing and highlighting questions when using tight layout
- Fixed: In Presentation View, graphing problems display choices more compactly
- Fixed: Printing blank pages on HP LaserJet 1018, 1020, and 1022 among others
- Fixed: Writing Linear Equations - directions didn't always match the problem

### Included in version 2.02 released 8/5/2014:

- New: Software uses system proxy when necessary
- Improved: Activation window has taskbar entry
- Improved: Remembers the last directory used when saving and opening files
- Fixed: [Windows only] Possible crash when loading an assignment with a lot of custom questions
- Fixed: [Mac only] Application stops responding to hover events
- Fixed: Activation from before v2.0 sometimes not recognized
- Fixed: Export to clipboard sometimes cuts off choices B and D
- Fixed: Help contents could become unusable
- Fixed: Word wrap when modifying a question
- Fixed: Memory leak

### Included in version 2.01 released 7/28/2014:

- Fixed: Could crash when opening an assignment from a different program

### Included in version 2.00 released 7/23/2014:

- New: Print to PDF
- New: Filter for topic list
- New: Zoom while viewing on screen
- New: "More like these" button in presentation mode
- New: Show where punch holes will go on the page
- New: Print only an answer sheet
- New: When printing, page range is enabled
- New: Page elements are outlined when hovered
- New: Double-click on directions to change them
- New: When merging assignments, options to put similar topics together or put them end-to-end
- New: Highlight and go to the questions in a question set (menu command or shift-click)
- New: Site licenses can be activated per-machine if run by the administrator
- New: Select multiple questions at a time:
- Ctrl-Click on a question
- Shift-Click on a question
- Ctrl-Shift-Click on a question
- Shift-Click in a empty area of a page
- Ctrl-Shift-Click in a empty area of a page
- Shift-Click on a question set
- Ctrl-Shift-Click on a question set

- Improved: Assignment files are drastically smaller
- Improved: Sidebar is dockable on either side, can be floated, and position reset
- Improved: Auto-spacing doesn't leave dead space at bottom of each page
- Improved: Preview when editing directions
- Improved: Keyboard shortcuts work no matter where the focus is
- Improved: Scale number of questions window more user-friendly
- Fixed: Minor bugs in five topics
**Note: Older versions will not be able to open assignments saved with this version**

### Included in version 1.56 released 8/14/2013:

- Fixed: Properties of Exponents - Could generate an incorrect answer
- Fixed: Volume & surface area of triangular prisms could be incorrect

### Included in version 1.55 released 12/11/2012:

- New: Graphs can be added to custom questions
- Improved: Graphing and Graph Paper utility more powerful and easier to use
- Improved: Support for loading files from Infinite Calculus
- Improved: Faster save/load
- Fixed: Custom questions with an illegal expression could freeze the program
- Fixed: Certain families of functions graphed incorrectly
**Note: Older versions will not be able to open assignments saved with this version**

### Included in version 1.53 released 9/11/2012:

- New: Preference for notation for greatest integer function
- New: Added maximize/restore button to Presentation View
- Improved: Help files
- Improved: Scroll bars
- Improved: User interface
- Improved: When choices make a question too tall for a page, some choices are removed
- Improved: Algebraic simplification routines are now more efficient
- Improved: Better graphs for: Graphing Linear Equations, Graphing Linear Inequalities, Graphing Systems of Linear Inequalities, Finding Slope
- Improved: Better number lines for: Graphing Inequalities, One-Step Inequalities, Two-Step Inequalities, Multi-Step Inequalities
- Fixed: Wrapping to full-page and half-page could be too wide
- Fixed: Able to graph certain families of functions
- Fixed: Issue involving loading & regenerating an assignment and answers being hidden
- Fixed: Program could ask about changing directions too much
- Fixed: Writing Linear Equations: Answer can't be line given in question

### Included in version 1.52 released 5/29/2012:

- Improved: More professional radical signs
- Improved: Graphs of discontinuous functions have breaks and open / closed holes
- Improved: Even less likely to crash when generating questions
- Fixed: Word wrapping could skip blank lines, not wrap where appropriate
- Fixed: Wrapping to full page in a custom question was too wide
- Fixed: Products of powers of
*e*(like 2*e*³) no longer display with a multiplication dot - Fixed: Most diagrams appeared incorrectly in print preview
- Fixed: Random error message on save or load

### Included in version 1.51.02 released on 4/9/2012:

- Fixed: Minimum Windows version was set incorrectly

### Included in version 1.51 released 4/5/2012:

- New: Added greatest integer function / floor function to custom questions Example: Find [int(2x)] when [x=3/5]
- New: Added piecewise functions to custom questions Example: [eval(f,x)] = [piecewise [x] if [x < 0], [xx] if [x >= 0]]
- Improved: Faster! Optimized rendering of questions to screen
- Improved: Faster! Optimized graphing routines
- Improved: Improved graphing capabilities
- Improved: Diagrams drawn more smoothly on screen
- Fixed: Graphs could omit holes
- Fixed: Graphs of constant functions or those involving
*e*and π could be incorrect - Fixed: Minor indentation issue in custom questions
- Fixed: Horizontal asymptotes could be drawn beyond a graph's area
**Note: Older versions will not be able to open assignments saved with this version**

### Included in version 1.50 released 3/15/2012:

- New: Presentation View window is resizeable
- New: Presentation View has option to automatically hide the answers when a new question is displayed
- New: High-level filter to prevent questions from containing an illegal expression
- Improved: Faster! Optimized the simplification of mathematical expressions
- Improved: Faster! Improved undo/redo algorithm
- Improved: Smaller executable size
- Improved: "Current Question Sets" list easier to use
- Improved: Options windows resize more smoothly
- Fixed: Markup, Discount, and Tax rounded answers inconsistently
- Fixed: Punctuation in some word problems
- Fixed: Certain expressions in a custom question would cause the software to crash
- Fixed: Expressions like
*root*×*term*would not print a multiplication dot **Note: Beginning with this version, Windows XP SP3 is the minimum required version of Windows****Note: Older versions will not be able to open assignments saved with this version**

### Included in version 1.45 released 4/12/2011:

- New: Assignments from this program can be opened and modified by our other programs (Assignments saved with v1.45 or greater can be opened by other programs v1.45 or greater)
- New: Student data fields (name, date, period) can be renamed
- New: Additional student data field available
- New: Add & Continue is available when modifying an existing question set
- New: Link to this details page when a software update is available
- New: Product serial numbers can be placed in config.txt to facilitate enterprise installations
- Improved: Better backwards- and future-compatibility
- Fixed: Add & Continue respects change in problem type
- Fixed: Assignments with quotes in the title don't prevent Save As
- Fixed: Quotients could be sometimes be simplified incorrectly
- Fixed: Decimals, Fractions, and Percents could sometimes crash
- Fixed: Decimals, Fractions, and Percents numbers could end with a decimal point, like "45."
- Fixed: Decimals, Fractions, and Percents sometimes removed zeros from the end of a whole number
- Fixed: Multi-Step Equations: Program could freeze
- Fixed: Properties of Exponents, numeric expressions: Program could freeze
- Fixed: Two-Step Equations no longer allows denominators of 1
- Fixed: Two-Step Inequalities no longer allows denominators of 1
- Fixed: Powers of
*i*are correctly displayed

### Included in version 1.42 released on 6/28/2010:

- New: Automatically checks for updates
- New: List topics by index order or suggested order
- New Topic: Plotting points in the coordinate plane

### Included in version 1.40 released 2/8/2010:

- New Preference: 'Spacious' or 'tight' layout of questions on page
- Improved: Question sets with one question are more intelligently spaced
- Improved: Graphs with small ranges now look better
- Improved: Options screen now resizeable
- Fixed: Directions occasionally orphaned at bottom of page
- Fixed: Correct numbers changed because zeros at the end of a number were deleted (50 → 5)

### Included in version 1.38.20 released 5/22/2009:

- Changed: Minor change to license agreement so that renewals extend the termination date instead of beginning a new term.

### Included in version 1.38 released 4/10/2009:

- New: Possible to change directions for a set without regenerating questions
- Improved: Help files
- Improved: Changing directions cascades changes to appropriate neighbors
- Correction: Answers to Properties of Exponents could have wrong sign
- Correction: Inequalities were sometimes solved incorrectly
- Fixed: Software sometimes failed to renumber questions in assignment

### Included in version 1.37 released 1/6/2009:

- New Topic: Simplifying numeric fractions
- Fixed: Software crashes when starting if closed when side panel is minimized

### Included in version 1.35 released 11/13/2008:

- Improved: Isolate up to four questions on screen at once
- Improved: Support for computers with multiple processors
- Improved: User interface: Toolbar + Preferences
- Fixed: Obscure error involving selecting a question and scaling the assignment

### Included in version 1.32 released 10/1/2008:

- New: Export individual questions as bitmaps
- Improved: Custom questions wrap to whole/half page
- Improved: Insert special symbols and math in custom questions
- Improved: Insert 'blanks' into math text
- Improved: Line thickness preference also now controls darkness of grid lines in graphs
- Fixed: Internet calls would sometimes report wrong error

### Included in version 1.30 released 7/30/2008:

- New: Add & Continue button
- New: Undo / redo
- New: Alternate wide screen layout
- Improved: Can manually enter compound inequalities
- Improved: Can manually enter all Greek letters, including pi and theta
- Improved: Better at reaching the theoretical number of possible questions
- Improved: More professional-looking assignments
- Correction: Rounding & naming decimal places answers occasionally wrong

### Included in version 1.12 released 9/2/2007:

- New: Single-question display for teaching with LCD projectors and other display systems
- Improved: Custom questions can now have separate directions
- Correction: Volume of a sphere correctly calculated
- Correction: Right edge of logarithms correctly calculated
- Correction: Grammar for certain one-step equation word problems corrected
- Correction: Order of operations topic printed extra parentheses under certain conditions
- Fixed: Program crashed when loading an assignment with a question set with zero questions

### Try Infinite Pre-Algebra Today!

Discover the power and flexibility of our software firsthand with a free, 14-day trial. Installation is fast and simple. Within minutes, you can have the software installed and create the precise worksheets you need -- even for today's lesson.

Use each trial for up to 14 days. The trial version is identical to the retail version except that you cannot print to electronic formats such as PDF.