CBSE > Class 07 > Mathematics | CBSE Board | Homework Help

For any two integers a and b, a+b is always an integer
For any two integers a and b, a-b is always an integer
Hence, Addition and Subtraction follows closure property.
Example: 1+(-15)=14
1+15=16
2-(-5)=7
2-5= -3 .

Commutative Property:For any two integers a and b, a+b=b+a

But, this is NOT true for Subtraction.

i.e. a-b b-a.

Associative Property:

For three integers a, b and c, [a+b]+c = a+[b+c]
But, this law doesn’t hold true for Subtraction.
i.e. a-(b-c) (a-b)-c

2Thank You

ANSWER

What is formula of hypotenuse

Posted by Tharun Rajkumar 6 years, 6 months ago

CBSE > Class 07 > Mathematics

3 answers

Aditya Bhimte 6 years, 6 months ago

The longest side of right angle triangle, opposite The right angle

1Thank You

Vunnam Ramadevi 6 years, 6 months ago

??????????? ??????????????????? ?????

0Thank You

Sia ? 6 years, 6 months ago

c = {tex}\sqrt{a^2 + b2}{/tex}

0Thank You

ANSWER

Write a pair of integers whose sum is -3 answer by solving

Posted by Chanda Banshiwal 6 years, 6 months ago

CBSE > Class 07 > Mathematics

2 answers

Aditya Bhimte 6 years, 6 months ago

-1+-2=-3

1Thank You

Typhoon Gaming 6 years, 6 months ago

-1+-2=-3

1Thank You

ANSWER

Starting from (_5)×4, find (_5)×(_6)×(_7)

Posted by Nishu Jain 6 years, 6 months ago

CBSE > Class 07 > Mathematics

2 answers

Prakriti Pradeep 6 years, 6 months ago

Are the numbers endless

1Thank You

Nishu Jain 6 years, 6 months ago

I don't know

0Thank You

ANSWER

Sum up your observations

Posted by Shruti Yadav 6 years, 6 months ago

CBSE > Class 07 > Mathematics

0 answers

ANSWER

A boy standing on the third stair on a stair case goes up five more stairs. Which stair is he standing now?At which step will he be after he comes down by 2stairs?

Posted by Aarti Yadav 6 years, 6 months ago

CBSE > Class 07 > Mathematics

1 answers

Sia ? 6 years, 6 months ago

Intially, The boy is standing on the 3rd stair.
Then, he move up 5 more stairs, (8th stairs)
Then, from 8 stair he comes down by 2 stairs(6th stair)
He is now on the 5th stair.

2Thank You

ANSWER

Closure property of integers

Posted by Bhavya Tomar 6 years, 6 months ago

CBSE > Class 07 > Mathematics

2 answers

Prakriti Pradeep 6 years, 6 months ago

This property is under brackets

1Thank You

Shruti Yadav 6 years, 6 months ago

Add two integers when always be an integer Example 9+3=12

0Thank You

ANSWER

In chapter 10 how we construct right triangle

Posted by Vaibhav Goyal 6 years, 6 months ago

CBSE > Class 07 > Mathematics

0 answers

ANSWER

Find an angle which is equal to its supplement

Posted by Sampat Dangi 6 years, 6 months ago

CBSE > Class 07 > Mathematics

4 answers

Mannat Thareja 6 years, 6 months ago

90 degree angle

0Thank You

Prachi Joshi 6 years, 6 months ago

180

0Thank You

Yogita Ingle 6 years, 6 months ago

Let the angle be x
x + x=180
2x = 180
x = 180/2
x = 90°

0Thank You

Shruti Yadav 6 years, 6 months ago

180

0Thank You

ANSWER

10×[(6)+(-2)]=

Posted by Sharmistha Sahu 6 years, 6 months ago

CBSE > Class 07 > Mathematics

4 answers

Prakriti Pradeep 6 years, 6 months ago

10*(6-2) =10*4 =40

1Thank You

Mannat Thareja 6 years, 6 months ago

10×[(6)+(-2)] 10×[6-2] 10×[4] 40

1Thank You

Sneha Ghosh 6 years, 6 months ago

Really

0Thank You

Yogita Ingle 6 years, 6 months ago

10 × [(6) + (-2)]
= 10 × [6 - 2]
= 10 × 4
= 40

3Thank You

ANSWER

Write two integer which is smaller than-7but there difference is-7

Posted by Bhajgovind Kumar 6 years, 6 months ago

CBSE > Class 07 > Mathematics

1 answers

Shristi Gairola 6 years, 6 months ago

-7+(-7) = -14 Take difference of them -14-(-7) -14+7 -7 -14 is smaller than -7 and their difference give -7

2Thank You

ANSWER

verify:2+7=-4+8

Posted by Ashit Kumaryadav 6 years, 6 months ago

CBSE > Class 07 > Mathematics

1 answers

Prakriti Pradeep 6 years, 6 months ago

2+7 =9 -4+8 =4 9 is not equal to 4 Thus they are nir equal.

1Thank You

ANSWER

Find the value of 41.75÷100

Posted by Jyoti Jain 6 years, 6 months ago

CBSE > Class 07 > Mathematics

4 answers

Prakriti Pradeep 6 years, 6 months ago

0.4175

1Thank You

Mannat Thareja 6 years, 6 months ago

0.4175

0Thank You

Vunnam Ramadevi 6 years, 6 months ago

0.4175

1Thank You

Jyoti Jain 6 years, 6 months ago

4175

0Thank You

ANSWER

5x-2=5+2x

Posted by Soma Paul 6 years, 6 months ago

CBSE > Class 07 > Mathematics

1 answers

Yogita Ingle 6 years, 6 months ago

5x - 2 = 5 + 2x
5x - 2x = 5 + 2
3x = 7
x = 7/3

0Thank You

ANSWER

Angle pqr intersect at abc

Posted by Anshika Gupta 6 years, 6 months ago

CBSE > Class 07 > Mathematics

0 answers

ANSWER

I can't understand the maths please tell me how I can understand maths

Posted by Reeta Devi 6 years, 6 months ago

CBSE > Class 07 > Mathematics

4 answers

Prakriti Pradeep 6 years, 6 months ago

Take interest in it ....its interesting

1Thank You

Mannat Thareja 6 years, 6 months ago

Maths is a concept in which you just have to practice and you need to take interest

0Thank You

Shruti Yadav 6 years, 6 months ago

Revise sums your teacher day to day

0Thank You

Vunnam Ramadevi 6 years, 6 months ago

Do hard work and pratise most and most.Understand the concepts.practice more exampler problems related to the concept

0Thank You

ANSWER

What is mean by question

Posted by Virat Kohli Anderson 6 years, 6 months ago

CBSE > Class 07 > Mathematics

0 answers

ANSWER

Exercise 3.3 qeustion no. 6

Posted by Sanjana Kumari 6 years, 6 months ago

CBSE > Class 07 > Mathematics

0 answers

ANSWER

go the chapter 3 data handling worksheet No1 Q4 how can we find the median the middle observation

Posted by Vivek Patel 6 years, 6 months ago

CBSE > Class 07 > Mathematics

0 answers

ANSWER

What is an equation ?

Posted by Saksham Raj 6 years, 6 months ago

CBSE > Class 07 > Mathematics

1 answers

Mannat Thareja 6 years, 6 months ago

Equitation is an operation which has a sign of =, a number and an variable

0Thank You

ANSWER

The median is always one of the number in the given data. True (or) False

Posted by Vunnam Ramadevi 6 years, 6 months ago

CBSE > Class 07 > Mathematics

3 answers

Shruti Yadav 6 years, 6 months ago

True

0Thank You

Mannat Thareja 6 years, 6 months ago

True

0Thank You

Virat Kohli Anderson 6 years, 6 months ago

True

2Thank You

ANSWER

Mathematics refrence book r.d sharma

Posted by Diksha P 6 years, 6 months ago

CBSE > Class 07 > Mathematics

0 answers

ANSWER

Add 5- 2_3

Posted by Sukhdev Singh 6 years, 6 months ago

CBSE > Class 07 > Mathematics

1 answers

Vunnam Ramadevi 6 years, 6 months ago

1Thank You

ANSWER

R.s.aggarwal solution of class 7

Posted by Jitesh Kumar 6 years, 7 months ago

CBSE > Class 07 > Mathematics

1 answers

Kasthuri Nayak 6 years, 7 months ago

I have

1Thank You

ANSWER

667514 convert into cm, m, km

Posted by Nitin Wadhwa 6 years, 7 months ago

CBSE > Class 07 > Mathematics

0 answers

ANSWER

6373839392871÷72737637

Posted by Manan Singh 6 years, 7 months ago

CBSE > Class 07 > Mathematics

1 answers

Saksham Raj 6 years, 6 months ago

87627.803923

0Thank You

ANSWER

Angel of45 degree

Posted by Nitin Wadhwa 6 years, 7 months ago

CBSE > Class 07 > Mathematics

3 answers

Mannat Thareja 6 years, 6 months ago

Acute angle

0Thank You

Saksham Raj 6 years, 6 months ago

Acute angle

0Thank You

Himanshu Pawar 6 years, 7 months ago

Acute

0Thank You

ANSWER

Find 5 rational numbers between - 2 and 2

Posted by Archit Khare 6 years, 7 months ago

CBSE > Class 07 > Mathematics

1 answers

Rashmita Panigrahy 6 years, 7 months ago

-1

1Thank You

ANSWER

Integer they are the number line the zero is a negative of positive

Posted by Virat Kohli Anderson 6 years, 7 months ago

CBSE > Class 07 > Mathematics

2 answers

Mannat Thareja 6 years, 6 months ago

0 is neither positive nor negative

0Thank You

Vunnam Ramadevi 6 years, 6 months ago

0 is neither positive nor negative

0Thank You

ANSWER

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