Math Riddles

This new Math riddle just in from Isabelle D. . . . . .

There were 2 cats.  One was named 1-2-3, and the other was named un-deux-trois.  There were on either side of the river and they both wanted to get across the river, but they were both scared of water. 

So, 1-2-3 said, “How about we race to make it more fun?”

Who won?

Please leave a comment.

 

 

GEOMETRY RIDDLE:

Fold me in half from top to bottom

and a rectangle you will see.

Fold me in half from corner to corner

and a triangle I will be!

What shape am I?

 

MATH RIDDLE:

I end in zero,

as do all my multiples.

My digits sum to 1,

as do all my powers.

What number am I?

 

There were three sticks

in a triangle upon the ground

of lengths: 3 feet, 5, and 9.

What’s the area that can be found?

MATH RIDDLE:

 I am a number palindrome,

For I am the same, both front and back!

And when added to myself,

The sum’s a palindrome, that’s a fact!

When multiplied by myself,

The result’s a palindrome, as you’ll see,

And if multiplied by the numbers 1 through 9,

The answer is a palindrome!

 What number can I be? 

Students,         

If you figure out the answer to this riddle, please e-mail the answer  to Mrs. Rose (with a parent’s permission) at: 

roser@madison.k12.ct.us 

8 Responses to “Math Riddles”
  1. Sam Thorpe says:

    Math riddle answer = 11 or 111 or 1111 etc.

    Sorry for getting back to you late.

  2. ruthrose says:

    Sam,
    Thanks so much for your response! Do you think there is a finite set of answers for this riddle or do you think there are infinite solutions? What are others thinking? Let’s talk some more about this . . . Also, do you have a Math riddle that you’d like to share?

    Mrs. Rose

  3. Chase says:

    billion

  4. timO. says:

    the geometry riddle answer is a square.

  5. roser says:

    Isabelle’s answer:

    1-2-3 won because un-deux-trois quatre cinq (cat sank).

  6. will says:

    it is a square.

  7. Luke Conway says:

    I think the answer to the math riddle is 10.

  8. Mrs. Rose says:

    Luke,

    Nice answer to the riddle below!

    Mrs. Rose

    MATH RIDDLE:

    I end in zero,

    as do all my multiples.

    My digits sum to 1,

    as do all my powers.

    What number am I?

  9.  
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