2. One of the disadvantages of the tally system is that the space needed to represent a number grows very fast. Representing one hundred takes one hundred tally marks! In the decimal system, one hundred needs three digits, and in the Greek and Roman systems it needs only one symbol. Consider each of the systems discussed in the sketch and dis- cuss the relation between the size of the number and the space needed to represent it. 2. One of the disadvantages of the tally system is that the space needed to represent a number grows very fast. Representing one hundred takes one hundred tally marks! In the decimal system, one hundred needs three digits, and in the Greek and Roman systems it needs only one symbol. Consider each of the systems discussed in the sketch and dis- cuss the relation between the size of the number and the space needed to represent it