Question

what is the divisibility rule of seven ?​

Answer 1

Answer:

Divisibility by 7. ... To check if a number is evenly divisible by 7: Take the last digit of the number, double it Then subtract the result from the rest of the number If the resulting number is evenly divisible by 7, so is the original number.

Step-by-step explanation:

Answer 2

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

483: 48 − (3 × 2) = 42 = 7 × 6