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Addition and Subtraction of Integers Video Lecture | Mathematics & Pedagogy Paper 2 for CTET & TET Exams - CTET & State TET
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FAQs on Addition and Subtraction of Integers Video Lecture - Mathematics & Pedagogy Paper 2 for CTET & TET Exams - CTET & State TET
| 1. What is addition and subtraction of integers? |  |
Ans. Addition and subtraction of integers refer to the mathematical operations performed on whole numbers, including negative numbers. Addition involves combining two or more integers to find their total, while subtraction involves finding the difference between two integers.
| 2. How do you add integers? | |
Ans. To add integers, follow these steps:
- If the integers have the same sign, add their absolute values and keep the sign.
- If the integers have different signs, subtract their absolute values and keep the sign of the integer with the larger absolute value.
- The sum is a positive integer if both integers are positive, and a negative integer if both integers are negative.
| 3. How do you subtract integers? | |
Ans. To subtract integers, follow these steps:
- Change the sign of the integer that is being subtracted.
- Treat the subtraction as addition and use the rules for adding integers.
- The difference is positive if the subtrahend is smaller than the minuend, and negative if the subtrahend is larger.
| 4. Can you give an example of adding integers? | |
Ans. Sure! Let's add -5 and 8:
-5 + 8 = 3
Since -5 and 8 have different signs, we subtract their absolute values and keep the sign of the integer with the larger absolute value.
| 5. Can you give an example of subtracting integers? | |
Ans. Of course! Let's subtract 10 from -3:
-3 - 10 = -13
To subtract 10 from -3, we change the sign of 10 and treat it as addition. Then we add -3 and -10 to get -13 as the difference.
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