Addition of Integers
Addition of Integers
Addition of integers:
Example: Add - 9005, 360
Solution: - 9005 + 360 = - 8645
If the signs are different subtract the smaller absolute value from the larger absolute value. The sign will be the sign of the integer that produced the larger absolute value.
Here the answer will be negative as 9005 is greater than 360 and sign of 9005 is negative.
We now study the properties satisfied by addition:
Example: 2 + 3 = 5, whjere 2, 3 and 5 are integers.
Example: (-3) + (-2) = (-5). where -2, - 3 and - 5 are integers.
Example: Verify the commutative property of addition for +16, -2
RHS = +16 + (-2) = +16 - 2 = +14 and LHS = -2 + 16 = +14
Hence Verified
Example: Verify the commutative property of addition for +10, +7 and - 5.
RHS = (a + b) + c = (+10 + 7) -5 = (+17) - 5 = +17 - 5 = +12
LHS = a + (b + c) = +10 + (+7 - 5) = +10 + (+2) = +10 + 2 = +12
Hence Verified
Example: Verify +9 for additive identity
LHS = a + 0 = +9 + 0 = +9 and RHS = 0 + a = 0 + (+9) = 0 + 9 = +9
Hence Verified
Find the sum using the properties of addition: ( - 40) + 100 + ( - 55) | |||
| Right Option : A | |||
| View Explanation | |||
Add the following: - 452 , 130 | |||
| Right Option : D | |||
| View Explanation | |||
Solve the following | |||
| Right Option : B | |||
| View Explanation | |||
Students / Parents Reviews [10]
My experience was very good with Abhyas academy. I am studying here from 6th class and I am satisfied by its results in my life. I improved a lot here ahead of school syllabus.
Ayan Ghosh
8thMy experience with Abhyas academy is very good. I did not think that my every subject coming here will be so strong. The main thing is that the online tests had made me learn here more things.
Hiya Gupta
8thIt has a great methodology. Students here can get analysis to their test quickly.We can learn easily through PPTs and the testing methods are good. We know that where we have to practice
Barkha Arora
10thAbout Abhyas metholodology the teachers are very nice and hardworking toward students.The Centre Head Mrs Anu Sethi is also a brilliant teacher.Abhyas has taught me how to overcome problems and has always taken my doubts and suppoeted me.
Shreya Shrivastava
8thIt was good as the experience because as we had come here we had been improved in a such envirnment created here.Extra is taught which is beneficial for future.
Eshan Arora
8thAbhyas Methodology is very good. It is based on according to student and each child manages accordingly to its properly. Methodology has improved the abilities of students to shine them in future.
Manish Kumar
10thI have spent a wonderful time in Abhyas academy. It has made my reasoning more apt, English more stronger and Maths an interesting subject for me. It has given me a habbit of self studying
Yatharthi Sharma
10thIt was a good experience with Abhyas Academy. I even faced problems in starting but slowly and steadily overcomed. Especially reasoning classes helped me a lot.
Cheshta
10thA marvelous experience with Abhyas. I am glad to share that my ward has achieved more than enough at the Ambala ABHYAS centre. Years have passed on and more and more he has gained. May the centre flourish and develop day by day by the grace of God.
Archit Segal
7thBeing a parent, I saw my daughter improvement in her studies by seeing a good result in all day to day compititive exam TMO, NSO, IEO etc and as well as studies. I have got a fruitful result from my daughter.
