# SAT Skills Insight

Next Tests:
10/11 , 11/8

#### Skills needed to score in this band

SKILL 1: Determine values or properties of numbers in a sequence when given a description of the sequence

SKILL 2: Create and use ratios, fractions, or percents in solving problems

SKILL 3: Solve more-complex counting problems (e.g., permutations, combinations, and inclusion/exclusion)

1. 1

Determine values or properties of numbers in a sequence when given a description of the sequence

Example

In a certain sequence where the numbers are increasing, the difference between consecutive terms is always the same. If the term in the sequence is and the term is , what is the term in the sequence?

2. 2

Create and use ratios, fractions, or percents in solving problems

Example

Marbles are to be removed from a jar that contains red marbles and black marbles. What is the least number of marbles that could be removed so that the ratio of red marbles to black marbles left in the jar will be to ?

3. 3

Solve more-complex counting problems (e.g., permutations, combinations, and inclusion/exclusion)

Example

There are different ways to arrange the letters E, F, and G in a row from left to right. How many more ways are there to arrange the letters D, E, F, and G in a row from left to right?

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#### Skills needed to score in the next band

Use π in algebraic and geometric contexts

Create and use ratios, fractions, or percents, including algebraic expressions, in solving problems

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