1. Try to remember these tips.

Question

2. Try to remember these peices of advice.
3. Try to remember the pieces of advice.
4. Try to remember these advices.
5. Try to remember these advice.
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Are #4 and #5 grammatical? What is similar to #1?

Answer 1

Omit 4 and 5.

Change 3 -- Try to remember this advice.

Change 2 -- Try to remember these pieces of advice.