# 3rd Grade Math

There are 25 students in Mrs. Roberts 3rd grade class. There are 9 more boys than girls in the class. How many boys and girls are in Mrs. Robert's class?

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.

1. 0
2. 0
3. 9
asked by Lisa
1. Boys 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

1. 0
2. 0
posted by bobpursley
2. Ahhh, 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!

1. 0
2. 0
posted by Reiny
3. 5x5=25

1. 0
2. 0
posted by arianna
4. I don't understand?

1. 0
2. 0
posted by Gianna
5. Suppose 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

1. 0
2. 0
posted by Edwin
6. 20 tiles in 5 rows

1. 0
2. 0
posted by tanzia
7. solve a simpler problem

1. 0
2. 0
posted by samikchya
8. You can tell her to subtract. Enjoy

1. 0
2. 0
posted by Jaszmine
9. get out 25 blocks then pull 9

1. 0
2. 0
posted by Elina
10. title is class collection data week 1

1. 0
2. 0
posted by melissa
11. Use structure what property of addition is showmen in the following number sentence ?explain.7+(3+5)=(7+3)+5

1. 0
2. 0
posted by Anonymous
12. Use Trial and error

5+14=19. No

1. 0
2. 0
posted by Aleyna
13. Its too hard

1. 0
2. 0
posted by Angel
14. Start with the idea that some of the students can be paired (boy/girl, boy/girl, boy/girl...

Then ask what (or who) will be left over after the pairing.... 9 boys. So have the child set the 9 boys apart... so instead of pairing 25 students we'll pair....be sure to ask the question rather than just tell... Most 8yr-olds will be able to figure out the equation required is 25-9=16. Help only as needed.

Now we have 16 students that we are going to pair boy/girl, boy/girl... How many pairs. So, with only what prompting is needed, that's how many girls? How many boys? May need a reminder about the 9 set aside before.

Students adds the 8 paired boys with the 9 stag boys = 17. 8 girls. Double check that the boys + girls adds up to the 25...

Yeah! Math isn't so terrible after all.

:D

1. 0
2. 0
posted by Krista
15. 25-9=16 boys. the rest are girls

1. 0
2. 0
posted by Derick
16. there are 16 girls

1. 0
2. 0
posted by Emma
17. students=25
boys=25-9=16
boys & girls=16
girls=16 divided 2=8
boys=8+9=17
girls=8
make sure your answer is correct:17+8=25

1. 0
2. 0
posted by jeniah
18. 15

1. 0
2. 0
posted by sienna
19. how many apples can you dived by 60
in 10 mients

1. 0
2. 0
posted by renee
20. 30

1. 0
2. 0
posted by Kaylee
21. Just explain how to use X for him.

1. 0
2. 0
posted by Zayn
22. 16

1. 0
2. 0
posted by emaan

## Similar Questions

1. ### math

Math word problem: There are 25 students in Mrs. Roberts 3rd grade class. There are 9 more boys than girls in the class. How many boys and girls are in Mrs. Robert's class.
2. ### math

Mrs. Roberts organized her class into four equal sized teams. Boys make 3/4 of each of the teams. If there are 2 girls on each team, how many students are there in the whole class? Please answer and explain.
3. ### Math 1350

Mrs. Smith's classroom can hold at the most 30 students. Her first period class had 4 boys for every 3 girls. When 3 boys and 1 girl were added to the class, the new ratio became 3 boys to 2 girls. How many total students are now
4. ### Math

Do you have any 3rd grade math practice worksheets that I can use with my students? One of my students has a predicament of not doing his homework. Please implement your time and implementing a few practice worksheets for my
5. ### Math

Mrs coopers 5th grade class has 11 more girls than boys. There are 35 students in all. How many girls are there?
6. ### Math

In a middle school 5th grade class there are 5 girls for every 4 boys. all together the class has 27 students. How many boys are in the class?
7. ### math

The fourth grade has 102 students.it has three times as many students as Mrs pride class.how many students are in Mrs pride class?
8. ### math

fifteen out of 25 students in Mrs. Smith's class are boys. what is the ratio of boys to girls? i put 1 to 6. is that right?
9. ### Algebra

A math class has 7 girls and 5 boys in the seventh grade and 4 girls and 4 boys in the eighth grade. The teacher randomly selects a seventh grader and an eighth grader from the class for a competition. What is the probability that
10. ### 11th grade

The students of litchfield High school are in grades 9,10,11,12. Of the students , 1/4th are in 9th grade, 1/3rd are in 10th grade, 1/6th is in 11th grade and there are 300 in the 12th grade, how many students are there all

More Similar Questions