Can You Get to 100?
Manipulate digits to get a sum of 100.
Author Archive for: corrill
Entries by InterMath
Multiples of Places
Find a number with a special relationship between two of its digits.
Composite Numbers
Follow the steps in manipulating a number and be surprised by the result!
Perfect Square Columns
Find the perfect squares in a given table.
Sums and Products
Using sums and products, what’s the largest number less than 50 that you cannot produce?
Square Root Patterns
Find the square root of a huge number.
The Last Digit
Determine the last digit in a huge number.
Making Change
Find different ways to make change for a dollar.
Irrational to Rational
Use square roots to produce integers.
Happy Numbers
Find happy numbers and patterns among them.