Understanding Number Systems: Binary, Denary, and Hexadecimal

What is the denary number system?

• A system with 10 unique digits from 0-9.

• A system with only two digits, 0 and 1.

• A system with 16 unique symbols.

• A system used only by computers.

In the denary number system, what happens to the value of each column as you move from right to left?

• It doubles.

• It is multiplied by ten.

• It is divided by ten.

• It stays the same.

How many unique digits are used in the binary number system?

• 10

• 16

• 2

• 8

In the binary number system, what happens to the value of each column as you move from right to left?

• It is multiplied by ten.

• It is divided by two.

• It doubles.

• It is multiplied by sixteen.

What are the only two unique digits used in the binary number system?

• 0 and 1

• 1 and 2

• 0, 1, and 2

• Any number from 0 to 9

In the binary number system, how do the column headings change as you move to the left?

• They increase by adding 1.

• They increase by multiplying by 2.

• They decrease by dividing by 2.

• They stay the same.

How are the numbers 10 through 15 represented in the hexadecimal number system?

• They are written as two-digit numbers.

• They are represented by special symbols.

• They are represented by the letters A through F.

• They are not used in hexadecimal.

What is the denary (base 10) value for the hexadecimal digit 'A'?

• 1

• 9

• 10

• 11