write divisibility rules of 11,6,8,4,3,9,2,5
Answers
Divisibility Test for 2: The last digit is 0, 2, 4, 6, or 8.
Divisibility Test for 3: The sum of the digits is divisible by 3.
Divisibility Test for 5: The last digit is 0 or 5.
Divisibility Test for 7: Cross off last digit, double it and subtract. Repeat if you want. If new number is divisible by 7, the original number is divisible by 7.
Divisibility Test for 11: For a 3-digit number, sum of the outside digits minus the middle digit must be 0 or 11.
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Step-by-step explanation:
Divisibility rules of 11 = If the number of digits is even, add the first and subtract the last digit from the rest. The result must be divisible by 11. If the number of digits is odd, subtract the first and last digit from the rest. The result must be divisible by 11.
Divisibility rules of 6 = A number is divisible by 6 if it is divisible by 2 and 3 both. Consider the following numbers which are divisible by 6, using the test of divisibility by 6: 42, 144, 180, 258, 156. [We know the rules of divisibility by 2, if the unit's place of the number is either 0 or multiple of 2]. 42 is divisible by 2.
Divisibility rule of 8 = The Rule for 8: a number is divisible by 8 if the last three digits are evenly divisible by 8. For example, 17216. The last three digits are 216 and it is divisible by 8.
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; this is because 100 is divisible by 4 and so adding hundreds, thousands, etc. is simply adding another number that is divisible by 4.
Divisibility rules of 9 = Sum the digits. The result must be divisible by 9.
Divisibility rules of 2 = A number is divisible by 2 if the last digit of the number is 0, 2, 4, 6, or 8. Example 1: Is the number 246 divisible by 2? Solution: Since the last digit of the number 246 ends in 6, that means it is divisible by 2
Divisibility rule of 5 = Divisibility by 5 is easily determined by checking the last digit in the number (475), and seeing if it is either 0 or 5. If the last number is either 0 or 5, the entire number is divisible by 5. If the last digit in the number is 0, then the result will be the remaining digits multiplied by 2.
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