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

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• 1. 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?
• 2. 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
• 3. What is the number represented by the point lock whose distance from the number axis to the point representing - 2 is 3?
• 4. 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 []
• 5. It is known that the number represented by point a on the number axis is 6, B is a point on the number axis, and point B is on the left side of point a, and ab = 10. The moving point P starts from point a and moves uniformly to the left along the number axis at the speed of 6 units per second, and the moving time is t (T > o) seconds. The moving point R starts from point B and moves uniformly to the left along the number axis at the speed of 4 units per second?
• 6. If the position of a negative rational number a on the number axis is a, what is the number corresponding to the point farthest from the origin among the points d > o which are D units away from a on the number axis If the position of a negative rational number a on the number axis is a, what is the number corresponding to the point farthest from the origin among the points D units (d > o) away from a on the number axis
• 7. ABC three points on the number axis represent - 6,0, + 5 respectively, then the positions of the three points are at the beginning of the origin______ ._______ ,______ ,
• 8. If the three points on the number axis A.B.C represent - 7. - 3. - 4 respectively, then their distances to the origin are ()
• 9. Xiao Li drew a number axis when he was working on the question. There was a point a on the number axis, which represented the number - 3. Due to carelessness, he marked the origin of the number axis wrong, so that the point a just fell on the position of the opposite number of - 3. If you want to draw the number axis correctly, which direction should the origin move to? How many units of length?
• 10. Xiao Li drew a number axis when he was working on the question. There was a point a on the number axis, which represented the number - 3. Due to carelessness, he marked the origin of the number axis wrong, so that the point a just fell on the position of the opposite number of - 3. If you want to draw the number axis correctly, which direction should the origin move to? How many units of length?
• 11. 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
• 12. 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
• 13. 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
• 14. 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?
• 15. 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 ()
• 16. 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____________ .
• 17. |The meaning of 5 | on the number axis is the distance between the point of () and the origin
• 18. 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?
• 19. |5 | = | 5-0 |, his meaning on the number axis is to express the distance between the point 5 and the origin, then | a + 6 | =?
• 20. 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______ ．