31. Ignoring the check digit , each of the first 9 digits is multiplied by 11 minus its position. 32. Moreover, the ten-digit ISBN check digit generally is not the same as the thirteen-digit ISBN check digit. 33. A very simple check digit method would be to take the sum of all digits ( modulo 10. 34. All values are added together and the remainder of the final value divided by 10 is the check digit . 35. The first 9 digits are assigned unique numbers with the 10th digit being a check digit for the identifier. 36. Next four digits indicate " Individual Wagon Number " and the last digit is a " Check digit ". 37. The last part is a check digit , and can take values from 0 9 and X ( 10 ). 38. The remainder of the numbers can be the 10 NDC digits, plus the check digit , but this is not required. 39. The check digits enable a sanity check of the bank account number to confirm its integrity before submitting a transaction. 40. The presentation of the Check Digit both electronically and in printed form on the label and packaging is very important.
