Proper Patterns

Given some of the proper factors of a number, what could the number be?

Squaring Legs

Using information about how a scroboscopus squares its number of legs, can you tell how many scroboscopi Tom bought?

The Middle Digit

Investigate the pattern(s) involving the middle digit in the square of numbers whose digits are all 1’s.

Breaking the Code

Use what you know or what you can find out about common letters to help you decode this message.

Counting Terms

How many terms are in the given sequence?

Average Patterns

Use the average of four 26’s and four 34’s to determine the average of four of another number.

Sprinting Around

When will Sonic the Hedgehog, the Road Runner, and the Tasmanian Devil meet if they are running on a circular track following the patterns described?

Missing Letters

Find the next two letters in the given sequence.

Number Machine

What will the number machine give me if I put in 100?

Even Factors

Find numbers whose factors are all even (excluding the number 1 as a factor).