The basic rule for divisibility by 4 is that if the number formed by the last two digits in a number is divisible by 4, the original number is divisible by 4;
Divisibility rules of 8:
If the last three digits of a whole number are divisible by 8, then the entire number is divisible by 8. For this rule, we will look at the last three digits of the number: 456,791,824.
Divisibility rules of 11:
Take the alternating sum of the digits in the number, read from left to right. If that is divisible by 11, so is the original number. So, for instance, 2728 has alternating sum of digits 2 – 7 + 2 – 8 = -11.
Divisibility rules of 12:
Subtract the last digit from twice the rest. The result must be divisible by 12.
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Answer:
Divisibility rules of 4:
The basic rule for divisibility by 4 is that if the number formed by the last two digits in a number is divisible by 4, the original number is divisible by 4;
Divisibility rules of 8:
If the last three digits of a whole number are divisible by 8, then the entire number is divisible by 8. For this rule, we will look at the last three digits of the number: 456,791,824.
Divisibility rules of 11:
Take the alternating sum of the digits in the number, read from left to right. If that is divisible by 11, so is the original number. So, for instance, 2728 has alternating sum of digits 2 – 7 + 2 – 8 = -11.
Divisibility rules of 12:
Subtract the last digit from twice the rest. The result must be divisible by 12.