Divisibility Rule for 7
Divisibility Rule for 7
Divisibility Rule of 7:This rule is used to check whether a number is divisible by 7 or not without performing long division. The rule states that remove the last digit from the number, double it and subtract the doubled number from the remaining number. Repeat the process till we get one digit or two digit number check the number if it is divisible by 7 then the number is divisible by 7.
Illustration: Check whether 3101 is divisible by 7?
Solution: Step 1: From 3101 take off the last digit of the number which was 1
Step 2: Double the removed digit and subtract it 310. That is 310 - 2 = 308
Step 3: Repeat the process by taking off the 8 from 308.
Step 4: Doubling it we get 16 which is subtracted from 30. That is 30-16 = 14
Step 5: The result is 14 which is a multiple of 7.
Hence the number is divisible by 7
Use 'Divisibility Rules' to determine which of the following numbers 2,376 is NOT divisible by: | |||
| Right Option : B | |||
| View Explanation | |||
Use 'Divisibility Rules' to determine which one of the following numbers is divisible by 7: | |||
| Right Option : B | |||
| View Explanation | |||
Use 'Divisibility Rules' to determine which of the following numbers 8,712 is NOT divisible by: | |||
| Right Option : A | |||
| View Explanation | |||
Students / Parents Reviews [10]
I 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
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
7thIt 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
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Manish Kumar
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Prisha 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
8thMy 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
8thAbhyas is a complete education Institute. Here extreme care is taken by teacher with the help of regular exam. Extra classes also conducted by the institute, if the student is weak.
Om Umang
10thOne of the best institutes to develope a child interest in studies.Provides SST and English knowledge also unlike other institutes. Teachers are co operative and friendly online tests andPPT develope practical knowledge also.
