Here's how it works:
* The silent e is NOT pronounced. It's there to change the pronunciation of the vowel that comes before it.
* It makes the preceding vowel long. For example, "cat" has a short "a" sound, but "cate" would have a long "a" sound (pronounced like "cay-tee").
* It's often used to indicate a long vowel sound in words ending in a single consonant. For example, "hope", "like", "smile", "bike".
Here are some examples:
* Short vowel sound: "hat", "mat", "bet", "fin", "run"
* Long vowel sound: "hate", "mate", "bete", "fine", "rune"
So, the silent e doesn't have its own sound, but it significantly influences the pronunciation of the preceding vowel.