Topic content:
(6 points) Fill the following numbers into the corresponding set:
7, , ,0,+2, ,-7, 1.25。
Negative integer set {...}
Positive fraction set {...}
Non negative number set {...}
Best answer:
Set of negative integers {- 7,...}
Positive fraction set {, 1.25...}
Non negative number set {7,,, 0,+2, 1.25...}
Answer analysis:
Through analysis, it is concluded that the set of negative integers {- 7,...}
Positive fraction set {, 1.25...}
Non negative number set {7,,, 0,+2, 1.25...}
Comment: This kind of test question belongs to the difficult test question. When answering this kind of test question, the examinee must grasp the basic classification of positive and negative numbers and rational numbers
Test core:
Definition of rational number: rational number is the general name of integer and fraction. All rational numbers can be transformed into fractions.