Let's go through the exercises from the image you've uploaded. These are calculations involving powers, fractions, and basic operations. I'll provide step-by-step solutions for each expression.

65. Apskaičiuokite (Calculate):

a) $10 - (2^5 \cdot 2^{-4} + 2^1)$

1. Calculate the powers:

   • $2^5 = 32$
   • $2^{-4} = \frac{1}{16}$
   • $2^1 = 2$

2. Multiply and add inside the parentheses: $32 \cdot \frac{1}{16} = 2, \quad 2 + 2 = 4$

3. Subtract: $10 - 4 = 6$

Answer: $6$

b) $(3^2)^2 - \left(5^2 + \frac{1}{2^2}\right)$

1. Calculate the powers:

   • $(3^2)^2 = 9^2 = 81$
   • $5^2 = 25$
   • $\frac{1}{2^2} = \frac{1}{4}$

2. Add inside the parentheses: [ 25 + \frac{1}{4} = 25.