Sean spelled 13 out of 20 words correctly on his spelling test. write his test score as a present (plz show the steps )

To write the answer as a percent, first we can show his score in a decimal.
We can do this by dividing the number of question he answered correctly by the total number of question:

13÷20= 0.65
To express decimals as a percent always multiply the decimal by 100 or move the decimal point 2 times to the right (moving it once to the right would be equivalent to multiplying by ten and once to the left is equivalent to dividing by 10) 

0.65*100 = 65

Therefore, Sean got a 65% on his spelling test

~I hope this helps!~