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virtuoso902
- Senior | Next Rank: 100 Posts
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- Joined: Thu Mar 19, 2009 12:03 am
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Is it important to memorize the divisibility rules?
e.g. is 769876 divisible by 9?
I've seen them on both the Kaplan and PR books to learn but I never see problems that require knowing them.
If I do need to memorize them what number should I memorize up to? 1-10? 1-15?
e.g. is 769876 divisible by 9?
I've seen them on both the Kaplan and PR books to learn but I never see problems that require knowing them.
If I do need to memorize them what number should I memorize up to? 1-10? 1-15?
