There have been a lot more than two amendments.
22nd & 12th
Amendments to WHAT? Government documents or commercial business documents.
There are two due process amendments. The 5th and 14th.
The 14th and 15th amendments of the Constitution of the United States
two
There are two ways to propose and ratify amendments to the Constitution. To propose amendments two thirds of both houses of congress can vote to propose an amendment, and two thirds of the state legislatures can ask congress to call a national convention to propose amendments.
There are no "informal" amendments. All 26 amendments are approved by Congress and are part of the constitution. Your question makes the assumption that there are two constitutions and there isn't.
Amendments are proposed by a two-thirds vote from Congress. An amendment can also be proposed by a convention called by Congress, if two-thirds of the states request it.
They are for the florida amendments and the united states amendments
Whenever two thirds of both Houses shall deem it necessary, shall propose Amendments to this Constitution, or, on the Application of the Legislatures of two thirds of the several States, shall call a Convention for proposing Amendments.
a two thirds vote of congress
The actual number of amendments that the leaders first proposed was,but two were not ratified at the time.