Missing Numbers

/by

Find the numbers represented by each letter in the puzzle.

Read more

Boxes in Boxes

/by

Determine how many boxes are empty.

Read more

Calendar Math

/by

When does the product of the month number times the day number equal the last two digits of the year?

Read more

Nails in a Pail

/by

Determine how much a pail and nails weigh.

Read more

Factor Five

/by

Examine numbers with exactly five factors.

Read more

Multiple Dozens

/by

Write the largest multiple of 12 given certain restrictions.

Read more

What is .999…?

/by

Can a number have two decimal representations?

Read more

Going to the Movies

/by

How many children and adults attended a special matinee of a magic show?

Read more

Family Math

/by

How old are a mother and son?

Read more

Integer Function

/by

Find the smallest integer for which an expression results in an integer.

Read more