Test the divisibility of 34625 by 9 and 11
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Answer:
- 34,625÷9 = 3,847.2222222222
- 34,625÷11 = 3,147.7272727273
Step-by-step explanation:
11 Form the alternating sum of the digits. The result must be divisible by 11.
Add the digits in blocks of two from right to left. The result must be divisible by 11.
Subtract the last digit from the rest. The result must be divisible by 11.
A number is divisible by 9, if the sum is a multiple of 9 or if the sum of its digits is divisible by 9. Consider the following numbers which are divisible by 9, using the test of divisibility by 9: 99, 198, 171, 9990, 3411. Sum of the digits of 99 = 9 + 9 = 18, which is divisible by 9.
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