Number Series* - HSPT Quantitative

The pattern is to subtract each time. The last operation is

The pattern is to multiply by each time. The last operation is

The pattern is to subtract , then multiply by . The last operation is

The pattern is to subtract , then add . The last operation is

The pattern is to add each time. The last operation is .

The pattern is to subtract each time. The last operation is .

Each term in this series is 12 bigger than the term before it. To find the next number add 12 to 120:

Each number is double the value of the preceding number.

The series increases by 7, then 2, then 7 again. So the next increase should continue the pattern and increase by 2.

The number series increases by 8, then decreases by 3, then increases by 8 again. The 5th number should continue the pattern and be a decrease of 3. The answer is .

The pattern is add , subtract . The last operation is .

The pattern is subtract , divide by . The last operation is .

The pattern is subtract , then multiply by . The last operation is .

The pattern in this series is perfect squares:

...

The pattern is add , then subtract .

The last operation is .

The pattern is divide by , then add . The last operation is .

The general pattern for this one is subtract each time, but a is placed between each element. Ignoring the 's, the last operation is .

The pattern is to multiply by and then to multiply by .

The last operation is .

The pattern for this series is to multiply by each time.

The last operation is .