Select the correct answer.
Malcolm is so good at math that he can do most calculations in his head. It's very rare that he has to use a pencil and paper to answer a math problem.
What
should
Malcolm remember to do when taking math tests?
O A.
have his calculator at hand just in case he needs it
OB. explain in short-answer format how he knew the right answer
show his work so he doesn't get points taken off
OD. preview the test when he first receives it