Wednesday

April 23, 2014

April 23, 2014

Posted by **Lisa** on Tuesday, October 2, 2012 at 5:57pm.

How can I explain this to my 8yr old in 3rd grade? I've got myself so confused in the process of trying to figure it out that I'm now lost as well.

- 3rd Grade Math -
**bobpursley**, Tuesday, October 2, 2012 at 6:02pmBoys and girls=25

but boys is girls+9

so girls+9+girls=25

twice girls+9=25

twice girls=16

girls=8

boys=nine plus eight

- 3rd Grade Math -
**Reiny**, Tuesday, October 2, 2012 at 6:08pmAhhh, this would be so easy with algebra as was shown by Ms Sue and Shelley, but I guess we can't use algebra for a grade 3

How about making two columns where the two numbers add up to 25 until we see a difference of 9

e.g.

10 15 ----> difference is 5

9 16 ----> difference is 7

8 17 ----> difference is 9 , YEaaahh!

- 3rd Grade reading -
**arianna**, Monday, January 13, 2014 at 8:00pm5x5=25

- 3rd Grade Math -
**Gianna**, Monday, January 27, 2014 at 6:27pmI don't understand?

- 3rd Grade Math -
**Edwin**, Tuesday, February 4, 2014 at 7:40pmSuppose the teacher says to the class:

"We're going to play a game and to play it we must have exactly the same number of boys as we have girls. So 9 of you boys will have to go to another room while we play this game."

So 9 boys get up and leave the room. That leaves 25-9 or 16 students in the room, 8 girls and 8 boys. Then after the game is over the 9 boys return. Now there are 8 girls and 8+9 or 17 boys.

Edwin

- 3rd Grade Math -
**tanzia**, Wednesday, February 26, 2014 at 5:20pm20 tiles in 5 rows

- 3rd Grade Math -
**samikchya**, Sunday, April 6, 2014 at 10:01pmsolve a simpler problem

**Related Questions**

math - Math word problem: There are 25 students in Mrs. Roberts 3rd grade class...

statistics - At a local high school students were randomly assigned to one of ...

math - The fourth grade has 102 students.it has three times as many students as ...

math - Mrs. Cindy needs to order new balls for the school students to use at ...

math - Mrs. Roberts organized her class into four equal sized teams. Boys make 3...

11th grade - The students of litchfield High school are in grades 9,10,11,12. Of...

3rd grade - There are 33 students in the band. There are 6 more fifth-grade ...

math - Mrs. Bollo's second grade class of thirty students conducted a pet ...

3rd grade math mrs spadini - is a centiliter a greaer measure than a milliliter...

statistics - A researcher is investigating whether, on average, 3rd grade males ...