HSPT practice-sequences

Front

What is a number sequence?

Back

A number sequence is an ordered list of numbers that follow a specific pattern or rule.

Front

What is the next number in the sequence: 23, 21, 19, _____?

Back

17

Front

What is the next number in the sequence: 2041, 2004, 1967, 1930, _____?

Back

1893

Front

What is the next number in the sequence: .8, .4, .2, .1, _____?

Back

.05

Front

What is the next number in the sequence: 46, 39, 32, 25, _____?

Back

18

Front

What is the next number in the sequence: 1, 60, 2, 53, 3, 46, 4, _____?

Back

39

Front

How do you identify the pattern in a number sequence?

Back

Look for a consistent difference or ratio between consecutive numbers.

Front

What is an arithmetic sequence?

Back

An arithmetic sequence is a sequence of numbers in which the difference between consecutive terms is constant.

Front

What is a geometric sequence?

Back

A geometric sequence is a sequence of numbers where each term after the first is found by multiplying the previous term by a fixed, non-zero number called the common ratio.

Front

What is the formula for the nth term of an arithmetic sequence?

Back

The nth term can be found using the formula: a_n = a_1 + (n-1)d, where a_1 is the first term and d is the common difference.