Q&A - P4 Math

[MathIzzzFun]

deleted

[MathIzzzFun]

vsk:

:thankyou: MathIzzzFun

u r welcome

cheers.

[Breadandmuffins]

There was an equal number of boys and girls in the class at first. Halfway, another 12 boys came into the class and 8 girls left the class. In the end, there were twice as many boys as girls in the class. How many students were there in the class at first?


Thank you.

[tianzhu]

Breadandmuffins:

There was an equal number of boys and girls in the class at first. Halfway, another 12 boys came into the class and 8 girls left the class. In the end, there were twice as many boys as girls in the class. How many students were there in the class at first?


Thank you.

Hi

For P4 kids, a neat way is to use MD.

Hope this helps.

Best wishes

http://farm8.staticflickr.com/7194/7134452903_69e3ef38c6_z.jpg\">

[MathIzzzFun]

Breadandmuffins:

There was an equal number of boys and girls in the class at first. Halfway, another 12 boys came into the class and 8 girls left the class. In the end, there were twice as many boys as girls in the class. How many students were there in the class at first?


Thank you.

Hi

here's the MD.. you should be able to complete the solution...

http://i45.tinypic.com/2lny1cl.png\">

cheers.

[24hr-mum]

hi tianzhu


can u draw the MD for the questions on clips that i posted earlier?
where the ans is 114?

[Breadandmuffins]

:thankyou: for the very fast response....with the explanation, its really much clearer to me now.

[tianzhu]

24hr-mum:

hi tianzhu


can u draw the MD for the questions on clips that i posted earlier?
where the ans is 114?

Hi

A likely way P4 kids would use will be MD.

There are alternate ways to present the MD.

As usual, I’ve drawn more MD than necessary, once students understand the logic behind the solution, they may consolidate the steps.

Mother's Day is just around the corner.

Wishing all sweetest, kindest and dearest mummies, be happy and healthy every day.

Best wishes

Hope this helps.

Best wishes.

http://farm8.staticflickr.com/7059/7134604523_da0dc89dc6_z.jpg\">

[24hr-mum]

why in 3rd model the 3unit +8 is dulpicated?


when shd draw usg the before and when use the After model?

[tianzhu]

24hr-mum:

why in 3rd model the 3unit +8 is dulpicated?


when shd draw usg the before and when use the After model?

Hi

The number of blue clips is twice the number of yellow clips.

We want to make a comparison so as to get the answers.

Before and after models show the before and after scenarios

Best wishes