I am currently a sophomore in high school competing in UIL academics in Texas. I am competing in the number sense test. Among the questions is the need to quickly multiply 2 two digits numbers, but as with all the questions present in the test, there is always a faster way to do things. One type of question that reoccurs in each test at every competition (I've gone to 3 so far (: ) is the need to multiply two 2-digit numbers together that have their digits flipped when compared to the other number(43*34 and 56*65). I was wondering if there was a faster way to do this than to mentally multiply them. Thanks for the help!
P.S. If there is a way to improve the formatting of the question, it would be greatly appreciated if you would kindly tell me!