What are the characteristics of the position of a pair of opposite numbers on the number axis

The distance to the origin is equal, and it is axisymmetric about the origin

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1. What are the characteristics of two points on the number axis that represent two opposite numbers?
2. What are the characteristics of the points on the number axis that represent opposite numbers?
3. What are the characteristics of opposite numbers on the number axis?
4. 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-----
5. 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
6. 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_________ ▶
7. 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______ ．
8. 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______ ．
9. |5 | = | 5-0 |, his meaning on the number axis is to express the distance between the point 5 and the origin, then | a + 6 | =?
10. 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?
11. What are the characteristics of the position of two opposite points on the number axis?
12. 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?
13. 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?
14. Move point a representing 3 on the number axis by 5 units to get point B, then the number represented by point B is______ ．
15. 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
16. 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?
17. On the number axis, point a first moves 5 units to the left and then 8 units to the right to reach point B. if the number represented by point B is 2, what number does point a represent
18. 3 move 12 unit lengths to the left and 8 unit lengths to the right on the number axis. How many unit lengths can this number move to the right to return to the origin? Is the origin 0 or 3?
19. Starting from a certain point on the number axis, a point first moves 5 unit lengths to the right, and then moves 2 unit lengths to the left. At this time, the number represented by this point is 1, then what is the number represented by the starting point?
20. A point starts from a point on the number axis, first moves 4 units to the right, and then moves 6 units to the left. At this time, the point represents + 1, then the number represented by the starting point is