What are the characteristics of two points on the number axis that represent two opposite numbers?

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• 1. What are the characteristics of the points on the number axis that represent opposite numbers?
• 2. What are the characteristics of opposite numbers on the number axis?
• 3. 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-----
• 4. 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
• 5. 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_________ ▶
• 6. 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______ ．
• 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. |5 | = | 5-0 |, his meaning on the number axis is to express the distance between the point 5 and the origin, then | a + 6 | =?
• 9. 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?
• 10. |The meaning of 5 | on the number axis is the distance between the point of () and the origin
• 11. What are the characteristics of the position of a pair of opposite numbers on the number axis
• 12. What are the characteristics of the position of two opposite points on the number axis?
• 13. 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?
• 14. 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?
• 15. Move point a representing 3 on the number axis by 5 units to get point B, then the number represented by point B is______ ．
• 16. 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
• 17. 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?
• 18. 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
• 19. 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?
• 20. 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?