How to find the number of integers between two other integers

Practice Questions

PSAT Math › How to find the number of integers between two other integers

Questions

4

1

How many prime numbers are between 1 to 25?

2

Four consecutive odd integers sum to 40. How many of these numbers are prime?

3

Find the median of this set of numbers

4

A custom-made ruler is $30\ cm$ long and for every $2\ cm$ there's a tick mark. How many tick marks are there on the ruler?

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