Let's break down the binary calculations from the image.

The problem involves binary numbers and basic operations (addition, subtraction, multiplication). Let's proceed with each step:

a) $10100 + 1000$

The binary numbers in question are:

• $10100_2$ (which is 20 in decimal)
• $1000_2$ (which is 8 in decimal)

Adding these two: $10100_2 + 1000_2 = 11100_2$ Thus, the result in binary is: 11100.

b) $10100 - 1000$

Subtracting the same binary numbers: $10100_2 - 1000_2 = 11100_2 - 1000_2 = 01100_2$ So, the result in binary is: 1100.

c) $10100 \times 1000$

Multiplying the binary numbers: $10100_2 \times 1000_2 = 10100000_2$ So, the result in binary is: 10100000.

Would you like more details on the steps for each operation? Let me know if you have any further questions!

Related questions:

1. How do you convert a binary number to decimal?
2. What are the rules for binary addition and subtraction?
3. How is binary multiplication different from decimal multiplication?
4. How do you represent large numbers in binary?
5. Can binary numbers be used in real-world applications, and how?

Tip: To check if binary addition is correct, convert the result to decimal and verify the sum.