A. Write true if the statement is correct or false if it is incorrect.
1. If a number is divisible by 3, it must be divisible by 9.
2. If a number is divisible by 9, it must be divisible by 3.
3. If a number is divisible by 4, it must be divisible by 8.
4. If a number is divisible by 8, it must be divisible by 4.
5. If a number is divisible by 18, it is divisible by both 3 and 6.
6. If a number is divisible by both 9 and 10, it must be divisible by 90.
7. 3694 is divisible by 11 because 3+6+9+4= 22, which is divisible by 11.
8. The least number that is divisible by 10, 15, and 20 is 60.
9. The sum of two consecutive odd numbers is always divisible by 4.
10. If a number divides three numbers exactly, it must divide their sum exactly.
1. If a number is divisible by 3, it must be divisible by 9.
2. If a number is divisible by 9, it must be divisible by 3.
3. If a number is divisible by 4, it must be divisible by 8.
4. If a number is divisible by 8, it must be divisible by 4.
5. If a number is divisible by 18, it is divisible by both 3 and 6.
6. If a number is divisible by both 9 and 10, it must be divisible by 90.
7. 3694 is divisible by 11 because 3+6+9+4= 22, which is divisible by 11.
8. The least number that is divisible by 10, 15, and 20 is 60.
9. The sum of two consecutive odd numbers is always divisible by 4.
10. If a number divides three numbers exactly, it must divide their sum exactly.
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1. False
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