Last active
July 13, 2024 18:24
-
-
Save LieBtrau/6c6cbb8b9637852688136797fb7dd26b to your computer and use it in GitHub Desktop.
Create math exercises for 1st to 3rd grade. Addition, subtraction, multiplication and division
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| #!/usr/bin/env python3 | |
| # | |
| # This program prints out three colums of exercises, each time with the result next to it. | |
| # Each column exists of 66 exercises. | |
| # | |
| # 1. Run the program | |
| # 2. Print out the created text file to a DINA4-paper | |
| # 3. Fold back the results of the first column | |
| # 4. Fill in the results for the first column. | |
| # 5. Unfold and check the results | |
| # 6. Use the same method for the other two columns. | |
| import os | |
| import random | |
| import sys | |
| import datetime | |
| import pytz | |
| def addingSubtractingNatural(MAXINT): | |
| ''' | |
| Generates a random addition or subtraction exercise with natural numbers (no negative numbers) | |
| MAXINT: the maximum number to be used in the exercise | |
| For first grade, MAXINT should be 20 | |
| For second grade, MAXINT should be 100 | |
| ''' | |
| answerfield = ' = ... \t|\t' | |
| a = random.randint(0, MAXINT) | |
| operations = ('+', '-') | |
| operation = random.choice(operations) | |
| if (operation == '+'): | |
| b = random.randint(0, MAXINT-a) | |
| c = a+b | |
| return str(a) + ' + ' + str(b) + answerfield + str(c) | |
| elif (operation == '-'): | |
| b = random.randint(0, a) | |
| c = a-b | |
| return str(a) + ' - ' + str(b) + answerfield + str(c) | |
| def multiplyDivideNatural(MAXINT): | |
| ''' | |
| Generates a random multiplication or division exercise with natural numbers (no negative numbers) | |
| MAXINT: the maximum multiplicand (or multiplier) to be used in the exercise | |
| For second grade, MAXINT should be 10 (so the product is less than or equal to 100) | |
| ''' | |
| answerfield = ' = ... \t|\t' | |
| a = random.randint(0, MAXINT) | |
| b = random.randint(0, MAXINT) | |
| c = a*b | |
| operations = ('x', ':') | |
| operation = random.choice(operations) | |
| if (operation == ':' and b == 0): | |
| # avoiding division by zero | |
| operation = 'x' | |
| if (operation == 'x'): | |
| # a*b = c | |
| return str(a) + ' x ' + str(b) + answerfield + str(c) | |
| elif (operation == ':'): | |
| # c/b = a | |
| return str(c) + ' : ' + str(b) + answerfield + str(a) | |
| def main(argv): | |
| # with open('./exercise_adding_subtracting.txt', 'w') as f1: | |
| # for lines in range(66): | |
| # f1.write(addingSubtractingNatural(20) + '\t\t' + addingSubtractingNatural(20) + '\t\t'+ addingSubtractingNatural(20) + os.linesep) | |
| with open('./exercise_multiply_divide_'+ str(int(datetime.datetime.now(tz=pytz.utc).timestamp())) +'.txt', 'w') as f1: | |
| for lines in range(66): | |
| f1.write(multiplyDivideNatural(10) + '\t\t' + multiplyDivideNatural(10) + | |
| '\t\t' + multiplyDivideNatural(10) + os.linesep) | |
| if __name__ == '__main__': | |
| main(sys.argv[1:]) |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment