A single number X is used as an estimate for the value of numbers, then the statistical mean minimizes the sum of the squares (xi - X)2 of the residuals. Statistical mean is popular because it includes every item in the data set and it can easily be used with other statistical measurements.
FREE printable numbers spaghetti string worksheets and numbers 1-10 worksheets. vocabulary: zero, one, two, three, four, five, six, seven, eight, nine, ten. There are two versions of the worksheets. One version has the words to trace after connecting them. The second page has one letter missing that the students must fill in.
now, here is a nice and small function to convert integers to hex strings and it avoids use of the DECHEX funtion because that function changed it's behavior too often in the past (now, in PHP version 4.3.2 it works with numbers bigger than 0x7FFFFFFF correctly, but i need to be backward compatible).