Situational Reminders
Find the smallest positive integer when you know its divisors and remainders.
Author Archive for: corrill
Entries by InterMath
Mystery Number
Given three of its twelve factors, what is the mystery number?
Combinations
Find a sequence of calculator key presses that produces a given number in the display.
Multiple Ages
Determine my age given that it is a multiple of a particular integer one year and a multiple of a different integer the next year.
Extended Pythagoras
Find three special numbers that add up to 365.
Consecutive Products
Find consecutive numbers whose product is a particular number.
Perplexing Properties
Find a number with these special properties.
Adding Places
Determine how many times the digits of each number less than 209 add to 8.
Balancing Entertainment
Help Jasmine determine how many CDs, tapes, and videos she can buy.
Squaring and Cubing
Find numbers that are either squares or cubes.