12A Midterm exam (Term 2)

What is the result of 1011₂ + 1101₂?

• 11000₂

• 10100₂

• 11110₂

• 10010₂

Calculate 1101₂ - 101₂.

• 1000₂

• 1010₂

• 100₂

• 111₂

Fill in the blank: 1110₂ + 0111₂ = (a)   ₂

Which binary subtraction is incorrect?

• 100 - 11 = 1

• 1111 - 1011 = 100

• 11 - 10 = 1

• 101 - 10 = 10

Multiply 101₂ × 100₂.

• 10000₂
• 1010₂
• 110₂
• 10100₂

Divide 10100₂ ÷ 10₂.

• 1010₂

• 1100₂

• 1110₂

• 1001₂

Fill in the blank: 10110₂ right-shifted by one place = (a)   ₂

Convert 45₁₀ to binary.

• 101101₂

• 111000₂

• 101110₂

• 100101₂

Convert 10101₂ to decimal.

• 19

• 21

• 23

• 25

Fill in the blank: The decimal equivalent of 11001₂ is (a)   ₁₀