A double fact in math is a doubled value that is easy to remember, such as the equation "8 + 8 = 16." Any doubled number is a double fact, but double facts are most commonly used when they are small numbers, usually less than 12.
Know MoreThe reason teachers use double facts to teach students is because they provide a faster way to find the answer to addition problems that are not as easy to memorize. For example, rather than remembering that "8 + 9 = 17," students can use double facts to come up with the answer. In this case, a student would know that the double fact of eight is 16 and that nine is one more than eight. The students then needs to add one to 16 to get the answer. The student could also remember the double fact of nine and then subtract one to get the answer.
The same technique also works for larger numbers. If a student tries to find the answer to "15 + 18," the student needs to remember that the double fact of 15 is 30. Accordingly, the student then needs to add three to that answer to get the solution.
Learn more about Homework HelpDetermine what type of learner you are. You may learn more easily by watching, by listening or by doing. Try to learn by the method that's best for you. Make sure you rarely miss class, and ask your teacher about anything you don't understand before moving to the next concept.
Full Answer >Math homework is completed by being fully prepared when starting the homework and following the instructions completely. If a student starts homework unprepared, frustration often sets in, resulting in poor results or not completing the homework at all.
Full Answer >A math tutorial is a set of instructions used to help someone learn math problems and equations. They are helpful to students, teachers and tutors.
Full Answer >A Math-Whizz tutor is an online program that simulates the behavior of an actual human tutor to help children understand math topics. Using an adaptive approach, the program assigns and constantly reevaluates the curriculum based on a student's answers to particular questions.
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