How to move two points in ABC so that the number represented by three points is the same? There are several ways to move? A is negative 2, B is negative 1, C is 2

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• 1. How to move the two points of a, B, C so that the numbers represented by the three points are the same? What kinds of moving methods are used? ABC is at the positions of - 5, - 1, 1 respectively
• 2. When the rabbit falls one kilometer behind the tortoise, it chases the tortoise at the speed of 101 M / min, but the tortoise still crawls at the speed of 1 m / min. how many minutes does it take for the rabbit to catch up with the tortoise Who knows?
• 3. An ant starts from the origin of the number axis. It first climbs to the right for one unit length to reach point a, and then climbs to the right for two unit lengths to reach point B An ant starts from the origin of the number axis. It first climbs to the right one unit length to reach point a, then to the right two unit lengths to reach point B. then it climbs to the left seven unit lengths to reach point C. please write down the numbers represented by points a, B and C? An ant starts from the origin of the number axis. It first climbs four unit lengths to the right to reach point a, and then climbs two unit lengths to the right to reach point B. Then crawl 7 units to the left to reach point C. please write down the numbers represented by points a and C
• 4. An ant crawls on the number axis. First it crawls four length units to the left, then it crawls three length units to the right. The number of the end point is 1. Then what is the number of the starting point of the ant?) urgent! Before 11 o'clock!
• 5. As shown in the figure, an ant climbs two units to the right along the number axis from point a to point B. point a represents the root sign 2. Let the number represented by point B be m. (1) find the value of M; (2) find | M As shown in the figure, an ant climbs 2 units to the right along the number axis from point a to point B. point a represents the root sign 2. Let the number represented by point B be m. (1) find the value of M; (2) find the value of | M-1 | + (M + 6) ^ 0
• 6. As shown in the figure, an ant climbs straight to the right along the number axis from point a to B. point a represents - root 2, and the number represented by point B is m (1) Find the value of M; (2) find m-2 radical 2 + (m-radical 2) & 178; online, etc!
• 7. As shown in the figure, on the number axis, the number represented by point a is root sign 3. Move point a to the right 4 units to get point a '. If the number represented by point a' is a
• 8. -1 translate 3 unit lengths to the right according to the positive direction of the number axis to point B, then the number represented by point B is?
• 9. Xiaoqiang represents two positive numbers 5 and 6 with a point A.B on the number axis. He translates A.B to the left at the same time, with the same unit length The numbers of the two new points are opposite to each other
• 10. It is known that the point a on the number axis represents 6, B represents - 4, and the moving point P starts from a and moves to the left at a speed of 6 unit lengths per second along the number axis at a uniform speed Given that point a on the number axis represents 6, B represents - 4, the moving point P starts from a and moves along the number axis at the speed of 6 unit lengths per second Move evenly to the left The moving point Q starts from a and moves to the left uniformly along the number axis at the speed of 1 unit length per second; the moving point R starts from B If P, Q and R move at the same time When p catches up with R, it immediately moves back to Q. when it meets Q, it stops moving. Then P moves from the beginning to the end What is the unit length of the journey when the movement stops?
• 11. Junior high school, addition and subtraction of rational numbers. (- 7) - 9 - (- 3) + (- 5), - 4.2 + 5.7-8.4 + 10, (- 1.3) - (- 3.2), - 1 / 4 + 5 / 6 + 2 / 3-1 / 2 It's a process, please
• 12. The following is the definition and operation of rational numbers a and B: a # B = A-B + 1. Is a # B equal to B # a? Why? I know it's not equal, mainly I want to know how to write the reason, and the reason is written by example
• 13. rational number
• 14. The concept of multiplication and division of rational numbers in the first year of mathematics of people's Education Press In urgent need of brothers and sisters
• 15. Who has the exercise of rational number in the first grade of junior high school Any question is OK, as long as the classic point, often test or uncommon questions on the line, can you also send the answer to it
• 16. On the concept of rational number in the first day of junior high school It is said in the book that generally, a minus sign is added before the rational number, but there is also a minus sign at the beginning of some formulas, and there are no brackets. Does it mean the opposite number or the negative number? Please help me, It's not a minus sign, it's a similar sign For example: -50 divided by 2 times (1 / 5) - 2 times (- 3) times (- 4) Just for an hour,
• 17. Positive rational number: 3, 2 / 3, 50, 2.5, 4 / 3. Negative rational number: - 7, - 2 / 3, - 0.8, - 10.5, - 11. Please select 2 positive rational numbers and 2 negative rational numbers from them, and then use the three symbols in "+, -, ×, △" to perform three operations on the selected 4 numbers, so that the operation result is 0, and write two formulas that meet the conditions
• 18. Rational number multiplication [- 10] * 3 * [- 1 / 2] * [- 5 and 1 / 3] * 4 / 5 [- 10] * 3 * [- 1 / 2] * [- 5 and 1 / 3] * 4 / 5 [- 17] * [- 2] * 34 * 0 * [125] 16 * [- 18] * 0.25 * [- 1] [- 4] * [+ 8.9] * [- 0.25] [- 2] - [+ 5 / 6] * [- 3 / 5] - 4-2 * 32 + [- 2 * 32] [7 / 6 + 5 / 4 + 3 / 18] * 36 [1 / 3 2 - [1 / 3-6 + 5 / 12] * 2.4] * 5
• 19. Mathematics in grade one of junior high school: is π 2 / 2 a fraction? Is it a rational number Our teacher said that those with π are not fractions, right
• 20. If the sum of two rational numbers is 0, then the product of the two numbers must be equal to minus one If the sum of two rational numbers is 0, then the product of the two numbers must be negative one, right or wrong, why