I think it was 10.
The first ten (The Bill of Rights.)
A constitution tells how governments are made
27
The number was 8
17 amendments has been added to the constitution blank.
10
Someone tell me!
10
As of 2017 the US Constitution has 27 amendments. 33 have been passed by the US Congress, but 6 of them were never ratified by the requisite number of states - leaving just the extant 27 amendments.
Articles of the Constitution are only amended, they are not removed. All of the original articles are still in the Constitution with the added amendments.
A president cannot add amendments. There is a specific procedure for amending the constitution, which requires the proposed amendment to first be passed by the congress and then be ratified by the states. There have been no constitutional amendments that were added during Mr. Obama's first term.
There were 12 amendments added to the constitution in the 20th century.