This test is checking that you perform your numerical calculations in the correct order,

and that you multiply/divide negative values correctly.

Study text: "Essential Mathematics and Statistics for Science", 2nd Edition,

G Currell & A A Dowman, Wiley-Blackwell, 2009

and that you multiply/divide negative values correctly.

Study text: "Essential Mathematics and Statistics for Science", 2nd Edition,

G Currell & A A Dowman, Wiley-Blackwell, 2009