Question

multiply the following expression mentally 12 x 22= 12(20+2)=

Answer 1

mentally write down your answer :-)
12*20 =
12*2 =
those two added =

Answer 2

you could also do this as 22(10+2) =
22*10 = (easy)
22*2 = (also easy)
those two added = (same answer as the other way)