Can You Get to 100?

/by

Manipulate digits to get a sum of 100. 

Read more

Multiples of Places

/by

Find a number with a special relationship between two of its digits.

Read more

Composite Numbers

/by

Follow the steps in manipulating a number and be surprised by the result!

Read more

Perfect Square Columns

/by

Find the perfect squares in a given table.

Read more

Sums and Products

/by

Using sums and products, what’s the largest number less than 50 that you cannot produce? 

Read more

Square Root Patterns

/by

Find the square root of a huge number.

Read more

The Last Digit

/by

Determine the last digit in a huge number.

Read more

Making Change

/by

Find different ways to make change for a dollar.

Read more

Irrational to Rational

/by

Use square roots to produce integers.

Read more

Happy Numbers

/by

Find happy numbers and patterns among them.

Read more