Finding Palindromes

How many four-digit palindromes exist?

Unknown Ages

If Roberto was born on his grandmother’s birthday, how old are Roberto and his grandmother now?

The Secret Pocket

How many of each kind of coin does Keith have in his secret pocket?

Products and Sums

Find a decimal number that meets certain requirements.

Remainder Shells

How many shells does Ken have in his shell collection?

Magic Square

Place the numbers in the diagram’s squares in a special way to create a magic square.

Aiming for Combinations

Annie shoots three arrows that all land inside rings of an archery target. What were her three scores?

Tallying an Election

Determine the number of votes a particular candidate could have received.

Clothes Shopping

Determine which outfit is cheaper in the long run.

Dollars and Sense

In how many ways can you make change for a dollar using certain coins?