A free alphanumeric data entry test can be found at typingweb.com. The site offers a free course that teaches touch-typing to students of any age.
Know MoreTypingWeb offers many lessons to help users improve their typing skills. The site has beginner, intermediate, advanced and even premium lessons, and the course is fully integrated for teachers. With this site, teachers can keep track of how all of their students progress, including which courses they have taken, their grades and any problem areas. The courses use games to help break up the monotony of typing the same things. Touch-typing helps users become more productive when using the computer, eliminating the need to look at the keyboard when typing.
Learn more about NumbersConsecutive odd numbers are any two odd numbers with only one even number between them. To find a pair of consecutive odd numbers when given their sum, set up the equation 2x + 2 to equal the sum. Solve it for the variable "x."
Full Answer >To find a missing number in a data set given the mean of the data set, count the total number of data points in the data set, including the missing number, and multiply the mean by this total number. Next, add together the known numbers in the data set. Finally, take the difference of the two numbers just calculated. The difference is the missing number.
Full Answer >To find prime numbers, use factorization to break down numbers and test whether they are prime or not. Numbers that are prime only have themselves and 1 as their factors; if they break down into other smaller numbers, they are not prime.
Full Answer >Stock photo and image sites like Shutterstock and iStockPhoto host large inventories of royalty-free images, including images of numbers and years on the Gregorian Calendar. Registered members can download images or print them out for a small fee.
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