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____________ .

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• 1. 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 ()
• 2. 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?
• 3. The distance from the number axis to the point represented by the origin - 1.5 is equal to the number represented by the point of 4
• 4. If a and B are two points on the number axis, the number corresponding to point a is - 20, and the number corresponding to point B is 100 (1) Please write the corresponding number of point m in ab
• 5. It is known that the corresponding numbers of two points AB on the number axis are - 1 and 3 respectively, and the corresponding number of point P is X (3) When the distance between point a and point B is 3, what is the corresponding number of point P
• 6. It is known that a and B are two points on the number axis respectively. The number corresponding to point a is - 20, the number corresponding to point B is 100, and the number corresponding to point m in ab
• 7. Points a and B are the corresponding points of negative 3 and 1 on the number axis, so that line AB moves to the right along the number axis to a'B ', and the corresponding number of the midpoint of line a'B' is 3 Then the number corresponding to point a 'is? The distance that point a moves is?
• 8. On the number axis, point a represents - 8 and point B represents 2, then the number represented by the point on the number axis whose distance is equal to that of a and B is zero
• 9. What is the number represented by the point lock whose distance from the number axis to the point representing - 2 is 3?
• 10. The distance between the point of 3 on the number axis and the point of 2 unit length is [] The distance between the point of 3 on the number axis and the point of 2 unit length is []
• 11. |The meaning of 5 | on the number axis is the distance between the point of () and the origin
• 12. 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?
• 13. |5 | = | 5-0 |, his meaning on the number axis is to express the distance between the point 5 and the origin, then | a + 6 | =?
• 14. 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______ ．
• 15. 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______ ．
• 16. 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_________ ▶
• 17. 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
• 18. 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-----
• 19. What are the characteristics of opposite numbers on the number axis?
• 20. What are the characteristics of the points on the number axis that represent opposite numbers?