Let's solve the given expressions step by step:

### 32. \(\sqrt{2} + \sqrt{3}\)
This expression cannot be simplified further. The value is:
\[ \sqrt{2} + \sqrt{3} \]

### 33. \(\sqrt{48} - \sqrt{28}\)
First, simplify the square roots:
\[ \sqrt{48} = \sqrt{16 \times 3} = 4\sqrt{3} \]
\[ \sqrt{28} = \sqrt{4 \times 7} = 2\sqrt{7} \]
So the expression becomes:
\[ 4\sqrt{3} - 2\sqrt{7} \]

### 37. \(\sqrt{7} + \sqrt{24}\)
First, simplify the square root:
\[ \sqrt{24} = \sqrt{4 \times 6} = 2\sqrt{6} \]
So the expression becomes:
\[ \sqrt{7} + 2\sqrt{6} \]

### 38. \(\sqrt{2} - \sqrt{3}\)
This expression cannot be simplified further. The value is:
\[ \sqrt{2} - \sqrt{3} \]

So the simplified expressions are:
1. \(\sqrt{2} + \sqrt{3}\)
2. \(4\sqrt{3} - 2\sqrt{7}\)
3. \(\sqrt{7} + 2\sqrt{6}\)
4. \(\sqrt{2} - \sqrt{3}\)