Integers Lesson 2
INTEGERS
Good morning students.
I am sure you did yesterday’s HW. For those who were not very sure of their answers check them online.
The students will be able to -
A few guidelines to go through the blog.
- the text in blue is to be written in your MATHS Notebook.
- the text in violet is to viewed by clicking on it.
The students will be able to -- Know the additive inverse of an integer
- Check whether the given 3x3 square is a Magic Square or not
- Comparision of integers after performing the operation of addition and subtraction on them
Explanation
The additive inverse of a number a is the number that, when added to a, yields zero. This number is also known as the opposite (number), sign change.
Answers
(i) Additive inverse of −83 = −(−83) = 83
(ii) Additive inverse of 256 = −(256) = −256
(iii) Additive inverse of 0 = −(0) = 0
(iv) Additive inverse of 2001 = −(−2001) = 2001
(ii) Additive inverse of 256 = −(256) = −256
(iii) Additive inverse of 0 = −(0) = 0
(iv) Additive inverse of 2001 = −(−2001) = 2001
Click on the link for Q8(i)
A Magic Square is an arrangement of numbers in a particular way in square grid.
To check whether a given grid is a magic square or not
1. Find sum of numbers in both the diagonals
2. Calculate sum of each rows and columns.
3. If the sum of numbers in both the diagonals is equal to every row’s sum and every column’s sum, then it is magic matrix.
2. Calculate sum of each rows and columns.
3. If the sum of numbers in both the diagonals is equal to every row’s sum and every column’s sum, then it is magic matrix.
Look at the magic square given below
Try doing Q7
Question 9.Use the sign of >, < or = in the box to make the statements true:
(a)
Ans.L.H.S = –8–4 R.H.S = –8+4
= -12 = - 4
–12 < –4
Try doing Q9 (b),(c),(d),(e)
Home Assignments
Now you should be able to complete NCERT Ex. 1.1 Q7,8,9
Fun Activity https://www.youtube.com/watch?v=zPnN046OM34
Fun Activity https://www.youtube.com/watch?v=zPnN046OM34
Good Morning Sir
ReplyDeleteKevin Tom Benoy 7B
Good afternoon sir
ReplyDeleteNishit Kedia
Good Afternoon Sir
ReplyDeleteManmeet Singh student of Class 7B
Good Morning Sir.
ReplyDeleteAarav Bansal
Sir, do we have to do the written work in a chemistry notebook?
ReplyDeleteI suppose is a maths class going on.
DeleteSir, in the blog (at the top) you have written to do the work in a chemistry notebook.
DeleteTHANKS FOR POINTING OUT THE MISTAKE. IT WAS TYPING ERROR. THANKS YOU BETA
DeleteGood morning Sir,
ReplyDeleteJatin Giroti 7B
Good morning sir Vincent Anthony Paul from class 7-B
ReplyDeleteGood morning sir Armaan Arora
ReplyDeleteGood morning sir Vaibhav Vij 7B
ReplyDeleteSir do we have to make a separate notebook for chemistry
ReplyDeleteGood morning sir .I am Aaron Xavier Jomon
ReplyDeleteGood morning sir Kanav Kapoor 7B
ReplyDeleteGood evening sir . Atyab khan 7B
ReplyDeleteGOOD MORNING SIR, ALOK M. TIRKEY
ReplyDeleteGood morning sir Aryan 7B
ReplyDeleteSorry sir good morning sir
ReplyDeleteKrishna Rawat7B
Good morning sir, Sol Kamlaldin 7B
ReplyDeleteGood morning sir
ReplyDeleteRayhan 7b
Good morning mam I am Devansh 7-B
ReplyDelete