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

Associative law states that the order of grouping the numbers does not matter.
In case of subtraction,
a-(b-c) ≠ (a-b) – c.
Example: 2- (3-4) = (2-3) – 4
2 + 1 = -1-4
3 = -5, which is not true.
So, associative law doesn’t hold for subtraction.

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Commutativity property subtraction 4 - 3 = 3 - 4 ? Plz answer for this

Posted by Mumthaz Sheikh 6 years, 6 months ago

CBSE > Class 07 > Mathematics

1 answers

Swathi Lakshmi 6 years, 6 months ago

Community property of subtraction is not possible . 4-3 which is not equal to 3-4 1which is not equal to ans not possible

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In a cet examination (+2 )marks are given for every correct answers and( -0.5 )marks is given for wrong answers lakhita scors 30 marks if she got 20 correct answers how many incorrect answers ?

Posted by Anushka Ninawe 6 years, 6 months ago

CBSE > Class 07 > Mathematics

0 answers

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Fraction related to daily life

Posted by Neeraj Kumar 6 years, 6 months ago

CBSE > Class 07 > Mathematics

1 answers

Řøhįţ Ŕąťhôđ ?✔ 6 years, 6 months ago

Yes?

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What is the ratio of triangle

Posted by Dinesh Khandelwal 6 years, 6 months ago

CBSE > Class 07 > Mathematics

2 answers

Mumthaz Sheikh 6 years, 6 months ago

When two triangles are similar, the reduced ratio of any two corresponding sides is called the scale factor of the similar triangles. In Figure 1 , Δ ABC∼ Δ DEF. Figure 1 Similar triangles whose scale factor is 2 : 1. The ratios of corresponding sides are 6/3, 8/4, 10/5.

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Řøhįţ Ŕąťhôđ ?✔ 6 years, 6 months ago

A+B+C=180

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2019 ,class 7 periodic tests paper

Posted by Tsering Choetso 6 years, 6 months ago

CBSE > Class 07 > Mathematics

2 answers

Řøhįţ Ŕąťhôđ ?✔ 6 years, 6 months ago

Which lesson

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Řøhįţ Ŕąťhôđ ?✔ 6 years, 6 months ago

You will get in this app

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Ritu how to add 3 by 5 part of an apple and the remaining Apple was eaten by her brother

Posted by Shrishti Biswas 6 years, 6 months ago

CBSE > Class 07 > Mathematics

2 answers

Bhawna Thebar 6 years, 6 months ago

1/5

1Thank You

Yogita Ingle 6 years, 6 months ago

Somu ate=1-3/5
=2/5 of the Apple
Ritu ate the larger share by=3/5-2/5
=1/5

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ANSWER

895864347983369974348996457889+46884323667897543356890865324567899=,6x

Posted by Rohit Rathod?? 6 years, 6 months ago

CBSE > Class 07 > Mathematics

3 answers

Řøhįţ Ŕąťhôđ ?✔ 6 years, 6 months ago

J4sskyajeuatmajeaeqxiaandimejajyiasmaiynjadyrkukjrlyeqryaksors6eajyrigaiykarurkkaajstskrusipjsulw4wu4akuraammstsmurskuts57sils7lslssisurrmuramhratsypdigjjsjwejrjjsjvewkdhhwji1zbwIvwmvnei2zhhq8fw9hgwk2gs6s1vizwbwbbwizywxhwxywkxbkwbzwmvaoozoqKwzykmwvakzqvJjziqk?????????????????????????????????????????????????⚓???⚓????

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Řøhįţ Ŕąťhôđ ?✔ 6 years, 6 months ago

Ok☺☺

2Thank You

Kiara Khurrana 6 years, 6 months ago

please do not use this app for rubbish questions like this better you understand it beta

6Thank You

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1÷a=1? ANSWER WITHE a VALUE

Posted by Chetan Bhardwaj 6 years, 6 months ago

CBSE > Class 07 > Mathematics

4 answers

Chetan Bhardwaj 6 years, 6 months ago

1Thank You

Kiara Khurrana 6 years, 6 months ago

dear saanvi plz dont reply if dont know beta teachers r there for the reply

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Saanvi Kumari 6 years, 6 months ago

2Thank You

Kiara Khurrana 6 years, 6 months ago

I think you have written the question wrong .plz correct it and then ask ...beta

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A plant from which a parasite plant get its nutrition

Posted by Krishnapriya Sukesh 6 years, 6 months ago

CBSE > Class 07 > Mathematics

1 answers

Kiara Khurrana 6 years, 6 months ago

Rafflesia

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A taxi driver change ₹ 9.80 per km. How much will he charge for a journey of 106.5km

Posted by Shivam Shivam 6 years, 6 months ago

CBSE > Class 07 > Mathematics

3 answers

Shivam Shivam 6 years, 6 months ago

The total cost of 24 chair is ₹9255.60. Find the cost of each chair

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Kiara Khurrana 6 years, 6 months ago

dear it is very easy since taxi driver charge ₹9.80 for 1km ,so for 106.5 km he will charge=106.5×9.80=1043.700 ...... hope it will help u

0Thank You

Shivam Shivam 6 years, 6 months ago

A taxi driver charges ₹ 9.80 per km. How much will he charges for a journey of 106.5 km

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In triangle ABC angle b = angle c, black and cm bisector angle b and angle c respectively. Prove that blog = cm

Posted by Bhawish Goyal 6 years, 6 months ago

CBSE > Class 07 > Mathematics

1 answers

Kiara Khurrana 6 years, 6 months ago

unable to understand your question

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ANSWER

AD is the bisector of angle A of triangle Abc in which AB=AC. Prove that the angles opposite to equal sides is equal

Posted by Bhawish Goyal 6 years, 6 months ago

CBSE > Class 07 > Mathematics

1 answers

Kiara Khurrana 6 years, 6 months ago

good question dear A / |\ / | \ /. | \. {hope this diagram is clear} B/__D___\C since AD is the bisector so BD=CD now ,In ∆ABD and ∆ACD AB=AC{ given} AD=AD{ commom} BD=CD{given} therefore,∆ABD~∆ACD{ cpct} so,angleB=angleC

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a÷(-1)=-a? For any integer a. Take different values of a and check.

Posted by Chetan Bhardwaj 6 years, 6 months ago

CBSE > Class 07 > Mathematics