I was tutoring a high school sophomore in algebra 2, and was shocked that she didn't know her multiplication tables! She kept using her fingers and adding up the numbers... or reaching for the calculator.

Is this a common thing these days? Do kids not know their multiplication tables?

ETA: Do you know your multiplication tables? Do you know your 12s, 13s, and 14s? Or to put it another way: do you know what 12 x 13 and 14 x 7 are?