Answer :

Sure, let's break down the problem step by step:

1. Calculate the product of 20 and 5:
- Multiply 20 by 5.
- [tex]\( 20 \times 5 = 100 \)[/tex].

2. Calculate the sum of 20 and 5:
- Add 20 and 5 together.
- [tex]\( 20 + 5 = 25 \)[/tex].

3. Subtract the sum from the product:
- Subtract the result of the addition from the result of the multiplication.
- [tex]\( 100 - 25 = 75 \)[/tex].

So, step-by-step, you find the product (100), then the summation (25), and finally, you subtract the sum from the product to get the final result (75). The detailed answer for this problem is therefore 75.