Excel in math and science.

Join using Facebook Join using Google Join using email

Forgot password? New user? Sign up

Existing user? Log in

Your answer seems reasonable. Find out if you're right!

That seems reasonable. Find out if you're right!

Join using Facebook Join using Google Join using email

Forgot password? New user? Sign up

Existing user? Log in

Number Theory

Common Misconceptions (Number Theory)

Challenge Quizzes

Number Theory Common Misconceptions: Level 1 Challenges
Number Theory Common Misconceptions: Level 2 Challenges
Number Theory Common Misconceptions: Level 3 Challenges

Number Theory Common Misconceptions: Level 1 Challenges

$\large \text{Is } 0 \text{ even or odd?}$

Odd Even Both Neither

Show explanation

View wiki

by Eli Ross

Are you sure you want to view the solution?

Cancel Yes I'm sure

True or False:

$\huge{\color{#D61F06}{3} \text{ is a multiple of } \color{#D61F06}{3}.}$

It is undefined. True False

Show explanation

by Clara Blackstone

Are you sure you want to view the solution?

Cancel Yes I'm sure

Which of these is not a property of all even and odd numbers?

\text{even} \times \text{even} = \text{even}

\text{odd} + \text{odd} = \text{even}

\text{even} \times \text{odd} = \text{even}

\text{even} + \text{even} = \text{even}

\text{odd} \times \text{odd} = \text{even}

Show explanation

View wiki

by Zandra Vinegar

Are you sure you want to view the solution?

Cancel Yes I'm sure

Can an odd number, divided by another odd number, times another odd number ever equal an even number?

If "yes," then find three numbers that work. If "no," then why not?

Clarification: The three odd numbers can be different numbers.

Yes No

Show explanation

View wiki

by Clara Blackstone

Are you sure you want to view the solution?

Cancel Yes I'm sure

True or False?

${\color{#3D99F6}{0} \text{ is a multiple of } \color{#D61F06}{3}.}$

True False It's undefined

Show explanation

by Clara Blackstone

Are you sure you want to view the solution?

Cancel Yes I'm sure