In order to find the mean of numbers, add up all of the numbers and thn divide it by the number of numbers there are. Adding two, five and twelve equals nineteen. Then divide three into nineteen, and this gives you a mean of 6.33.
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Two hundred twelve thousand, five hundred.
Twelve plus two tenths plus five thousandths equals twelve and two hundred five thousandths.
12.25 is also known as "twelve and a quarter.". In english, this is commonly said to be Twelve point two five or twelve and twenty five hundredths.
10
12.65 in words is twelve and sixty-five hundredths or twelve point six five