Question

what is the divisible rule for 7
who will say answer i will follow them
(6 class)​

Answer 1

Step-by-step explanation:

In order to test this, you must take the last digit of the number you're testing and double it. Then, subtract this number from the rest of the remaining digits. If this new number is either 0 or if it's a number that's divisible by 7, then then original number is divisible by seven.

Answer 2

Answer:

Divisor Divisibility condition

7 Adding 5 times the last digit to the rest gives a multiple of 7. (Works because 49 is divisible by 7.)

Subtracting 2 times the last digit from the rest gives a multiple of 7. (Works because 21 is divisible by 7.)