The position of rational number AB on the number axis, as shown in the figure, is reduced to a + B - a-b --- B -- negative 1 -- 0 -- a -- 1----- | Math enthusiast | Mathematical art

The position of rational number AB on the number axis, as shown in the figure, is reduced to a + B - a-b --- B -- negative 1 -- 0 -- a -- 1-----

B & lt; - 1,0 & lt; a & lt; 1, so a + B & lt; 0, A-B & gt; 0 | a + B | = - (a + b), | A-B | = A-B, the original formula = - A-B-A + B = - 2A

RELATED INFORMATIONS

1. The position of the rational number AB on the number axis is known as shown in the figure, which simplifies | a | - | B | - | A-B | - | a + B| B < 0, a > 0, | B | greater than a
2. The position of rational number AB on the number axis is shown in the figure, which is simplified as follows: (1) | a | - A; (2) | a + B |; (3) | a | + | B | (4) | b-a Simplification: (1) | a | - A; (2) | a + B |; (3) | a | + | B | (4) | b-a| Number axis:_____ B________ 0____ A_________ ▶
3. If the distance between point a and the origin on the number axis is 3, and the distance between point B and the origin is 5, then the distance between a and B is 0______ ．
4. If the distance between point a and the origin on the number axis is 3, and the distance between point B and the origin is 5, then the distance between a and B is 0______ ．
5. |5 | = | 5-0 |, his meaning on the number axis is to express the distance between the point 5 and the origin, then | a + 6 | =?
6. As we all know, the meaning of 5 = (5-0) on the number axis is the distance between the point of 5 and the origin (that is, the point of 0). What is the meaning of a + 4 on the number axis?
7. |The meaning of 5 | on the number axis is the distance between the point of () and the origin
8. We all know that | 5 | = | 5-0 |, which means the distance between the point of 5 and the origin, that is, the point of 0 Similarly, the meaning of formula | a + 5 | on the number axis is____________ .
9. On the number axis, the distance between point a of 2.5 and the origin is (), the distance between point B of - 2.5 and the origin is (), and the distance between two points a and B is ()
10. What is the distance between point a of 2.5 and the origin on the number axis? What is the distance between point B of - 2.5 and the origin? What is the distance between two points AB?
11. What are the characteristics of opposite numbers on the number axis?
12. What are the characteristics of the points on the number axis that represent opposite numbers?
13. What are the characteristics of two points on the number axis that represent two opposite numbers?
14. What are the characteristics of the position of a pair of opposite numbers on the number axis
15. What are the characteristics of the position of two opposite points on the number axis?
16. The numbers corresponding to two points a and B on the number axis are - 8 and 2. If M and N start from two points a and B at the same time, they move on the number axis at a certain speed The velocity of m point is 2 units / s, and that of N point is 1 unit / s Point C is between a and B, and point n starts from point B and moves in the negative direction of the number axis. When point n goes to the midpoint D of two points B and C, what is the sum of the distances from point n to two points a and C?
17. The corresponding point of a rational number on the number axis is a. move point a three unit length to the left and then two unit length to the left to get point B. the absolute value of the number corresponding to point B is equal to that of point A. what is the corresponding number of point a?
18. Move point a representing 3 on the number axis by 5 units to get point B, then the number represented by point B is______ ．
19. Starting from a point on the number axis, a point moves 5 unit lengths to the right, and then 4 unit lengths to the left. If the number represented by the end point is - 3, what is the number represented by the start point
20. If a point on the number axis moves 4 unit lengths to the left and then 8 unit lengths to the right along the number axis, and the number represented by the end point is 0, then it originally represents 0 What is the number? If this point takes 6 seconds from the start to the end, what is the average moving speed of this point?