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31 Cards in this Set
- Front
- Back
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1/6 |
.1667 |
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5/6 |
.833 |
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1/7 |
.143 |
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1/8 |
.125 |
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1/9 |
.111 |
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1/4 |
.25 |
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3/4 |
.75 |
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1/11 |
.0909 |
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1/3 |
.3333 |
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2/3 |
.66667 |
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1/7 |
.1428571 |
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How do you find Number of Equation Vs Number of Unknowns |
Grp1 + Grp2 + Neither - Both |
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Compound Interest |
P(1+I/100n)^ny |
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Finding the square root of a number |
N^2 + N + (N+1) = (N+1)^2 |
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Rebuilding the remainder |
Divisor= Dividend * Quotient + Remainer |
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% increase/decrease |
Change/Original |
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Divisibility by 2 |
All even number is |
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Divisibility by 2 |
All even number is |
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Divisibility by 5 |
If the last digit is 5 or 0 |
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Divisibility by 4 |
If the last 2 digit forms a digit divisible by 4 then it is. |
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Divisibility by 3 |
Add all the digit together, if the sum is divisible by 3 then it is |
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Divisibility by 9 |
If the sum of digit is divisible by 9, then it is |
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Divisibility by 6 |
1. divisible by 2, and 2. Divisible by 3 |
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Counting factors of large numbers |
1. Find prime factorization 2. Create list of exponents of prime factorization 3. Add one to every number on list 4. Multiply new list. |
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1.Even + Even; Even - Even 2.Odd + Odd; Odd - Odd 3.Even + Odd; Even - Odd |
1. Even 2. Even 3. Odd |
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Counting factors of large numbers |
1. Find prime factorization 2. Create list of exponents of prime factorization 3. Add one to every number on list 4. Multiply new list. |
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1.Even + Even; Even - Even 2.Odd + Odd; Odd - Odd 3.Even + Odd; Even - Odd |
1. Even 2. Even 3. Odd |
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1. Even * Even 2. Odd * Odd 3. Even * Odd |
1. Even 2. Odd 3. Even |
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Square of a Sum |
(a+b)^2 = a^2 + 2ab + b^2 |
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Sum of sequences |
N*(F. Term + L. Term)/2 |
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Sum of sequences |
N*(F. Term + L. Term)/2 |
