中等math-u10-d02
A question asks for an answer in exact form. Which response is appropriate?
A. Give the exact surd or fraction, unless the question says otherwise✓ 答案
B. Always round to 2 decimal places
C. Omit the working and give only a decimal
D. Round to 3 significant figures whatever is asked
解說
If exact form is requested, giving a surd or fraction is what is wanted. Rounding without being asked can lose marks, and omitting working loses method marks.