The largest unsigned number that can be represented in an n-digit binary number is

Question 10 options:

1)	n
2)	2n
3)	2n1
4)	2n1

How would someone who has memorized the value of 2¹⁰ compute the value of 2¹²?

Question 14 options:

1)	Double the value of 210 and the double it again.
2)	Multiply the value of 210 by 12.
3)	Multiply the value of 210 by 2.
4)	Add 12 to the value of 210.

In positional number systems, the number zero is important

Question 15 options:

1)	for multiplication.
2)	as a placeholder.
3)	for counting.
4)	for addition.