Math, asked by gdas46444, 11 months ago

without actual division show that each of the following number is divisible by 7
7777
77077
770077
7700077​

Answers

Answered by Sakshithegenius
18

Answer:

To get the divisibility of 7 the given trick you should use-

Step-by-step explanation:

Remove the last digit from the number , double it and subtract it from the first part of the number do this respectively until you get something you recognise as being divisible by 7 or not .

Q-1

Solving 7777

1)Remove 7 then double it 14.

2) Subtract 14 from 777 then 763

3)763 is divisible by 7.

Since, 7777is divisible by 7.

Q-2

Solving 77077

1) Remove 7 then double it 14.

2) Subtract 14 from 7707 then 7,693.

3)7,693 is divisible by 7.

Since ,77077is divisible by 7.


Sakshithegenius: Plz mark me as a brainlist answer
Answered by ITarya08
7

Answer:

Check out from the book editing I have done, I have also posted on Google.

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