1.is equal to; is the same as =

    the result is; yields; gives

    2.the sum of x and y; the total of x and y;

    x added to y; x increased by y;         x+y

    x more then y; x greater than y

    3.x minus y; x less y;

    the difference of x and y; x take away y;

    from x subtract y' x decreased by y;     　x-y

    x diminished by y; y is subtracted from x;

    y less than x (note the reversal)

    4.　x multiplied by y;

    the product of x and y; xy

    5. divided by y;

    the quotient of x and y;            x y，

    y divided into x (note the reversal)

    6.　A and B are factors of C;

    A and B are divisors of C;

    C is divisible by A and by B;     A B=C

    C is a multiple of A and of B;

    A divides C and B divides C;

    7. the ratio of a to b     　a：b，

    8. reciprocal of             x

    9. x times as many z as y; 　z=x y

    10.　a squared;

    a to the second power         a2

    11. a cubed;                　a3

    a to the third power

    12. between a and b        　 (a，b)

    between a and b， inclusive 　[a，b]

    13. off                     　低于，從……中扣除

    14. account for             　占

    15. third

    16. of x (a fraction of x);     x，0.75x

    75% of x (a percent of x)