Sorry if this has been posted before, I couldn't find it in my search of the forums. Which shortcuts/basics should you know and to what extent?
Some I think that are necessary:
1. Prime numbers up to (and not including) 100
2. Factorials up to 7
3. Decimal equivalents of fractions (and vice versa) with denominator 2, 4, 5, 8, 10
4. Factors of 36, 48, 72, 96, 144
5. Powers (up to): 2^10, 3^5, 4^4, 5^4, 6^3, 7^2, 8^2, ... , 19^2
Please correct me if these are too limited and what else should be included.
Some I think that are necessary:
1. Prime numbers up to (and not including) 100
2. Factorials up to 7
3. Decimal equivalents of fractions (and vice versa) with denominator 2, 4, 5, 8, 10
4. Factors of 36, 48, 72, 96, 144
5. Powers (up to): 2^10, 3^5, 4^4, 5^4, 6^3, 7^2, 8^2, ... , 19^2
Please correct me if these are too limited and what else should be included.
