Using the digits 1 to 9, fill in the red and blue boxes so that the chart is accurate. You can only use a number once per red box and once per blue box. Note: a blue 1 will create a error due to how this program calculates the log (Division by 0) Once you drag your number over the box you wish to place it in, click the mouse to set the number
Adapting Open Middle problems from the site openmiddle.com https://www.openmiddle.com/logs/