51.   Some local psychologists and marriage counselors were wary of reducing human relationships to a math problem.

52.   So two research groups have turned to DNA to crack math problems containing so many variables that they overwhelm conventional computers.

53.   Solving the math problem seemed simple to one school board member.

54.   Still, the simplest math problem can throw Nike.

55.   Teachers who misspell words on the blackboard, cannot solve simple math problems or use improper grammar should be found out and fired.

56.   The council members insist that there is no single way to solve math problems, and that students should experiment with alternatives.

57.   The higher-level math problems require long division and some complex word problems that even some adults may find a challenge.

58.   The math problems were incomprehensible to me, a breeze for Katie.

59.   The rest of the class sat in a large circle, working math problems and practicing English.

60.   The student can do math problems in Nemeth Braille and can produce a conventional copy for the teacher without the help of a sighted reader.

n. + problem >>共 955
health 11.61%
heart 4.65%
drug 2.79%
security 2.11%
computer 1.60%
safety 1.51%
knee 1.51%
image 1.25%
injury 1.12%
kidney 0.97%
math 0.48%
math + n. >>共 159
teacher 13.21%
class 8.67%
problem 8.67%
skill 5.99%
test 5.78%
professor 5.26%
score 5.16%
course 2.37%
student 1.96%
whiz 1.86%
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