Topic content:
In the following formula, (1) ― 8 ― 3=― 5, (2) 0 ― (― 6)=― 6, (3).
(4) (- 36) ÷ (- 9)=- 4, (5) 7 ÷ × 7=7. The correct number is () A. 1, B. 2, C. 3, D. 4
Best answer:
A
Answer analysis:
Solution:
(1) , so this subtopic is wrong;
(2) , so this subtopic is wrong;
(3) , this subtopic is correct;
(4) , so this subtopic is wrong;
(5) , so this subtopic is wrong;
To sum up, only (3) is correct, so A is selected.
Test core:
Definition of rational number: rational number is the general name of integer and fraction. All rational numbers can be transformed into fractions.