Math Free America

- Automated Mathematics Training and Competition -
- a project of WordsFree.org -

- Dedicated to Sister Geraldine Marie -
NEW! November 18, 2003:   Does finding prime factors drive you crazy? Help is here in the new Prime Factorization Calculator. (Download primes.exe here) or read more in the homework help section
INDEX TO FREE PROGRAMS: For release information on current and obsolete files see the file release log
Free math test software for Windows/DOS. Download from this page, no registration needed.
Quick Start Instructions:
No "installation" required, no changes made to your Windows settings. Just download a math test (very small -- less than 100 kBytes), store it in a directory of your choice and run it. To quit a test early use Ctrl-C. Your results get stored in a file called "records.txt" in whatever directory you run it from. If there already is a file "records.txt" it will add test results onto the end.
top | index | arithmetic | fraction | applied | homework | algebra | utilities | logs
Basic arithmetic operations
WHOLE NUMBERS ONLY -- ADDITION/SUBTRACTION TEST:
addsub.exe click to download
  • No frills -- achievement is the game in this plain old arithmetic drill!
  • replaces asmath1.exe. corrects name bug and formats printing a bit differently.
NATURAL NUMBERS ONLY -- MULTIPLICATION/DIVISION TEST:
muldiv.exe click to download
  • This test is certified free of Negative Numbers.
INTEGERS, POSITIVE AND NEGATIVE -- ADDITION/SUBTRACTION TEST:
addsubn.exe download here
  • Serious practice with adding/subtracting negative numbers!
  • Hint: if the negatives get complicated for you, perhaps try using really small numbers (like 2 or 3 maybe) as addend limits and build up from there.
INTEGERS, POSITIVE AND NEGATIVE -- MULTIPLICATION/DIVISION TEST:
muldivn.exe download here
  • Where two negatives always make a positive
top | index | arithmetic | fraction | applied | homework | algebra | utilities | logs
Applied math
Making Change level 1:    change1.exe download here
  • You say how much money you will be paying
  • You are asked to enter change for items costing between $0.01 and the amount you paid you say 
top | index | arithmetic | fraction | applied | homework | algebra | utilities | logs
Homework help
Prime factorization:    primes.exe download here
  • This is not a test -- it is a calculator that finds prime factors of whole numbers.
  • View or download factortable.txt listing prime factors of numbers up to 1000
top | index | arithmetic | fraction | applied | homework | algebra | utilities | logs
Algebra
Solve linear equations level 1 download here
  • Solve simple linear equations with integer coefficients
  • Answers must be in lowest terms, fractions or mixed numbers as applicable
  • examples solve for B in 3B = 7 (B = 2 1/3); solve for G in -5=7G (G = -5/7)
top | index | arithmetic | fraction | applied | homework | algebra | utilities | logs
Fraction center
CONVERT FRACTIONS TO DECIMALS -- 3 PLACES
fracdec2.exe click to download
  • great mental math exercise (dividing by up to 12)
  • replaces fracdec.exe. corrects name bug, formats printing differently, improves rounding error
ADD & SUBTRACT FRACTIONS AND MIXED NUMBERS:
Comment from Alan: On this day, November 18, 2003,
I hereby declare the following fraction addition and subtraction
tests as potentially painful to the brain. I suggest you proceed
with a very positive attitude and maybe even paper
and pencil to do these.   Hmmm. Maybe not...
what's the sport in using paper and pencil? :-)
Small Print Promise: I will have homework helps for these tests, and simpler versions of them "soon."
addfracez2.exe download here
  • Answers are always positive
  • Q&A in lowest terms, 10 questions
  • operands 1-10 / 1-10 (level 1)
  • click here to see an example problem worked out.
addfrac2.exedownload here
  • Answers are always positive
  • Q&A in lowest terms, 10 questions
  • operands 1-10 / 1-15 (level 2)
  • click here to see an example problem worked out.
addfracez.exe download here
  • Answers are random positive and negative
  • Q&A in lowest terms, 10 questions
  • operands 1-10 / 1-10 (level 3)
  • click here to see an example problem worked out.
addfrac.exe download here
  • Answers are random positive and negative
  • Q&A in lowest terms, 10 questions
  • operands 1-10 / 1-15 (level 4)
  • click here to see an example problem worked out.
top | index | arithmetic | fraction | applied | homework | algebra | utilities | logs
WordsFree.org recommends:

Math phobia? Allergic to algebra? Wonder why "Real Math Teachers" are the way they are? Help may be as close as the unique book Algebra Unplugged!
WordsFree.org is an associate of Amazon.com and benefits when you take one of our links to Amazon.com and then make a purchase. Click on the book picture to go directly to that book at Amazon.com where you can purchase it, or read generous online excerpts for free. 		cover
Utilities:
top | index | arithmetic | fraction | applied | homework | algebra | utilities | logs
RELEASE LOG BEGINS BELOW. NEWEST FILES FIRST.
File release log

File: primes.exe
Upload date: November 18, 2003
Summary: Calculates prime factors of whole numbers
Instructions: Download primes.exe, store in directory of your choice and run. This is actually a DOS program, with no installation required. Store and run from DOS command line (if you're DOS-savvy) or by clicking from Windows Explorer just like it was any other Windows program. The program is interactive and does not store anything on your hard drive. Just download and run it wherever you put it.
KNOWN ERRORS: none.
To download: click here.
To uninstall: delete primes.exe from wherever you put it.
File: alg1.exe
Upload date: November 7, 2003
Summary: Solve simple linear equations with integer coefficients
Instructions: Download alg1.exe, store in directory of your choice and run. This is actually a DOS program, with no installation required. Store and run from DOS command line (if you're DOS-savvy) or by clicking from Windows Explorer just like it was any other Windows program. Results show up in file records.txt. Each time results are printed on the screen the records.txt file is appended with the new results. You can quit the test early with Ctrl-C and the partial test results will not be recorded on disk.
KNOWN ERRORS: none.
NOTE: Decimals are OK when entering payment limit; oddball amounts are acceptable.
To download: click here.
To uninstall: delete alg1.exe and (optionally) records.txt from wherever you put it.
File: change1.exe
Upload date: November 5, 2003
Summary: Making Change -- from a user-specified amount paid
Instructions: Download change1.exe, store in directory of your choice and run. This is actually a DOS program, with no installation required. Store and run from DOS command line (if you're DOS-savvy) or by clicking from Windows Explorer just like it was any other Windows program. Results show up in file records.txt. Each time results are printed on the screen the records.txt file is appended with the new results. You can quit the test early with Ctrl-C and the partial test results will not be recorded on disk.
KNOWN ERRORS: none.
NOTE: Decimals are OK when entering payment limit; oddball amounts are acceptable.
To download: click here.
To uninstall: delete change1.exe and (optionally) records.txt from wherever you put it.

File: muldivn.exe
Upload date: November 3, 2003
Summary: basic multiplication and division drill with positive/negative integers
Instructions: Download muldivn.exe, store in directory of your choice and run. This is actually a DOS program, with no installation required. Store and run from DOS command line (if you're DOS-savvy) or by clicking from Windows Explorer just like it was any other Windows program. Results show up in file records.txt. Each time results are printed on the screen the records.txt file is appended with the new results. You can quit the test early with Ctrl-C and the partial test results will not be recorded on disk.
KNOWN ERRORS: none.
To download: click here.
To uninstall: delete muldivn.exe and (optionally) records.txt from wherever you put it.

File: muldiv.exe
Upload date: November 3, 2003
Summary: basic multiplication and division drill with positive integers only
Instructions: Download muldiv.exe, store in directory of your choice and run. This is actually a DOS program, with no installation required. Store and run from DOS command line (if you're DOS-savvy) or by clicking from Windows Explorer just like it was any other Windows program. Results show up in file records.txt. Each time results are printed on the screen the records.txt file is appended with the new results. You can quit the test early with Ctrl-C and the partial test results will not be recorded on disk.
KNOWN ERRORS: may ask you to divide by 0. If it does, just answer 0.
To download: click here.
To uninstall: delete muldiv.exe and (optionally) records.txt from wherever you put it.

File: addsubn.exe
Upload date: November 1, 2003
Summary: basic addition and subtraction drills with negative and positive numbers
Instructions: Download addsubn.exe, store in directory of your choice and run. This is actually a DOS program, with no installation required. Store and run from DOS command line (if you're DOS-savvy) or by clicking from Windows Explorer just like it was any other Windows program. Results show up in file records.txt. Each time results are printed on the screen the records.txt file is appended with the new results. You can quit the test early with Ctrl-C and the partial test results will not be recorded on disk.
KNOWN ERRORS:: none.
To download:: click here.
To uninstall:: delete addsubn.exe and (optionally) records.txt from wherever you put it.

File: fracdec2.exe
Upload date: November 1, 2003, replaces fracdec.exe
Summary: converting fractions to decimals, num range 1-50, denom 1-12
Instructions: Download fracdec2.exe, store in directory of your choice and run. This is actually a DOS program, with no installation required. Store and run from DOS command line or by clicking from Windows Explorer just like it was any other Windows program. Results show up in file records.txt. Each time results are (if you're DOS-savvy) printed on the screen the records.txt file is appended with the new results. You can quit the test early with Ctrl-C and the partial test results will not be recorded on disk.
KNOWN ERROR:: none.
To download:: click here.
To uninstall:: delete fracdec2.exe and (optionally) records.txt from wherever you put it.

File: addsub.exe
Upload date: November 1, 2003 -- replaces asmath1.exe
Summary: basic addition and subtraction drills
Instructions: Download addsub.exe, store in directory of your choice and run. This is actually a DOS program, with no installation required. Store and run from DOS command line (if you're DOS-savvy) or by clicking from Windows Explorer just like it was any other Windows program. Results show up in file records.txt. Each time results are printed on the screen the records.txt file is appended with the new results. You can quit the test early with Ctrl-C and the partial test results will not be recorded on disk.
KNOWN ERRORS:: none.
To download:: click here.
To uninstall:: delete addsub.exe and (optionally) records.txt from wherever you put it.

File: addfracez2.exe
Upload date: October 31, 2003
Summary: Similar to addfracez.exe, except answers are never negative.
To download:: click here.

File: addfrac2.exe
Upload date: October 31, 2003
Summary: similar to addfrac.exe, except answers are never negative
To download:: click here.

File: addfracez.exe
Upload date: October 31, 2003
Summary: adding and subtracting fractions
Test details: operands are selected with random numerator from 1-10 and random denominator from 1-10, then reduced and converted to mixed numbers if necessary. Difference from addfrac.exe is the lower denominator and subsequently LCD's are smaller.
Instructions: Download addfrac.exe, store in directory of your choice and run. This is actually a DOS program, with no installation required. Store and run from DOS command line (if you're DOS-savvy) or by clicking from Windows Explorer just like it was any other Windows program. Results show up in file records.txt. Each time results are printed on the screen the records.txt file is appended with the new results. You can quit the test early with Ctrl-C and the partial test results will not be recorded on disk.
COMMENTS:: There is no longer a problem with entering names like in earlier programs. Those with the problem will be archived.
To download:: click here.
To uninstall:: delete addfracez.exe and (optionally) records.txt from wherever you put it.

File: addfrac.exe
Upload date: October 31, 2003
Summary: adding and subtracting fractions
Test details: operands are selected with random numerator from 1-10 and random denominator from 1-15, then reduced and converted to mixed numbers if necessary.
Instructions: Download addfrac.exe, store in directory of your choice and run. This is actually a DOS program, with no installation required. Store and run from DOS command line (if you're DOS-savvy) or by clicking from Windows Explorer just like it was any other Windows program. Results show up in file records.txt. Each time results are printed on the screen the records.txt file is appended with the new results. You can quit the test early with Ctrl-C and the partial test results will not be recorded on disk.
COMMENTS:: There is no longer a problem with entering names like in earlier programs. Those with the problem will be archived.
To download:: click here.
To uninstall:: delete addfrac.exe and (optionally) records.txt from wherever you put it.

File: Asmath1.exe [OBSOLETE Nov 1, 2003 replaced with addsub.exe]
Upload date: October 29, 2003
Summary: basic addition and subtraction drills
Instructions: Download asmath1.exe, store in directory of your choice and run. This is actually a DOS program, with no installation required. Store and run from DOS command line (if you're DOS-savvy) or by clicking from Windows Explorer just like it was any other Windows program. Results show up in file records.txt. Each time results are printed on the screen the records.txt file is appended with the new results. You can quit the test early with Ctrl-C and the partial test results will not be recorded on disk.
KNOWN ERROR:: YOU MUST ENTER ONLY A ONE-WORD NAME. IF YOU ENTER A NAME WITH A SPACE IN IT, IT WILL SKIP ALL THE PROBLEMS AND GIVE YOU A 0.
To download:: click here.
To uninstall:: delete asmath1.exe and (optionally) records.txt from wherever you put it.

File: fracdec.exe [OBSOLETE Nov 1, 2003 replaced with fracdec2.exe]
Upload date: October 29, 2003
Summary: converting fractions to decimals, num range 1-50, denom 1-12
Instructions: Download fracdec.exe, store in directory of your choice and run. This is actually a DOS program, with no installation required. Store and run from DOS command line or by clicking from Windows Explorer just like it was any other Windows program. Results show up in file records.txt. Each time results are (if you're DOS-savvy) printed on the screen the records.txt file is appended with the new results. You can quit the test early with Ctrl-C and the partial test results will not be recorded on disk.
KNOWN ERROR:: YOU MUST ENTER ONLY A ONE-WORD NAME. IF YOU ENTER A NAME WITH A SPACE IN IT, IT WILL SKIP ALL THE PROBLEMS AND GIVE YOU A 0.
KNOWN ERROR:: IT MAY BE SLIGHTLY FORGIVING OR HARSH IN SOME CASES BECAUSE THE ROUNDING ISSUE REALLY ISN'T DONE RIGHT YET. CHECK BACK AFTER 31-OCT-2003 FOR FIXES.
To download:: click here.
To uninstall:: delete fracdec.exe and (optionally) records.txt from wherever you put it.
top | index | arithmetic | fraction | applied | homework | algebra | utilities | logs
This page last modified 18-Nov-2003 by Alan Siegman. For comments, additions, or corrections, please send me email at alan@wordsfree.org".