Divisiblity rule of 25
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Step-by-step explanation:
Rule for Divisibility by 25. A number is divisible by 25 if it ends with 00, 25, 50, or 75.
Examples. A.) 154,750 is divisible by 25 because its ends with 50. ...
Proof. For any integer anan-1an-2...a1a0, we will show that x is divisible by 25 if a1a0 is divisible by 25.
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