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Representation of Integers on a Number Line Video Lecture | Crash Course for CTET Preparation (English) - CTET & State TET
FAQs on Representation of Integers on a Number Line Video Lecture - Crash Course for CTET Preparation (English) - CTET & State TET
| 1. What is a number line and how is it used to represent integers? |  |
Ans.A number line is a straight line that represents numbers at equal intervals. It is used to show the position of integers, where positive integers are located to the right of zero and negative integers are located to the left. This visual representation helps in understanding the order and relative values of integers.
| 2. How do you identify the position of negative integers on a number line? | |
Ans.Negative integers are positioned to the left of zero on a number line. Each negative integer is placed at equal intervals from zero, with -1 being immediately to the left of zero, -2 further left, and so on. This arrangement helps in comparing negative integers to each other and to positive integers.
| 3. Can you explain how to add and subtract integers using a number line? | |
Ans.To add integers using a number line, start at the position of the first integer and move right for positive integers or left for negative integers. For subtraction, start at the first integer and move in the opposite direction. This method visually demonstrates the result of the operation.
| 4. Why is zero considered an important integer on the number line? | |
Ans.Zero is important because it serves as the neutral point on the number line, separating positive and negative integers. It is the starting point for counting and helps in understanding concepts such as absolute value and integer operations. Zero also represents the absence of value.
| 5. How can a number line help in understanding the concept of absolute value of integers? | |
Ans.A number line visually illustrates absolute value by showing the distance of an integer from zero, regardless of its direction. For example, both -3 and 3 are 3 units away from zero on the number line, indicating that their absolute value is 3. This helps in grasping the idea that absolute value measures magnitude without considering sign.
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