Another riddle...

We wrote a new riddle! It's a tricky one...

I can change colours.
I am fluffy.
If you can reach me, you can go through me.
I am in the sky.
What am I?

Comment if you think you know the answer.

In math we have been working on expanded notation.
So the number 37 would expand to 30 + 7.
We are working on using this when adding two numbers.

35 + 21

35 would equal 30 + 5
21 would equal 20 + 1
You can add the tens together first.                   30 + 20 = 50
Then you add the ones together.                        5 + 1    = 6
Then you put the numbers back together so      50 + 6 = 56

Have a great weekend!

Love,
Room 25