P3 Maths

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P3 Maths

Postby Bunny27 » Wed Feb 15, 2017 3:12 pm

Hi
Can someone help on this question?Thanks
Jessy had 120 sweets and Sandra had 48 sweets. After Jessy gave Sandra some sweets, Sandra had 40 less sweets than Jessy. How many sweets did Jessy give to Sandra ?

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Re: P3 Maths

Postby mum2b » Wed Feb 15, 2017 3:48 pm

Image

u = (120-48-40) / 2 = 16

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Re: P3 Maths

Postby thihaz » Fri Apr 21, 2017 10:44 am

Bunny27 wrote:Hi
Can someone help on this question?Thanks
Jessy had 120 sweets and Sandra had 48 sweets. After Jessy gave Sandra some sweets, Sandra had 40 less sweets than Jessy. How many sweets did Jessy give to Sandra ?


Can someone explain that in algebra? Thanks.

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Re: P3 Maths

Postby jetsetter » Fri Apr 21, 2017 11:20 am

thihaz wrote:
Bunny27 wrote:Hi
Can someone help on this question?Thanks
Jessy had 120 sweets and Sandra had 48 sweets. After Jessy gave Sandra some sweets, Sandra had 40 less sweets than Jessy. How many sweets did Jessy give to Sandra ?


Can someone explain that in algebra? Thanks.

u should post in AskQ. Why use algebra? Model is easier for kids.

Let x be no of sweets given to S by J

120 - x - 40 = 48 + x
2x = 32
x = 16

OR

(120 - x) - (48 + 4) = 40
2x = 72 - 40
x = 16

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Re: P3 Maths

Postby thihaz » Fri Apr 21, 2017 12:06 pm

Hi, Thanks thanks.
Modelling is hard to understand so hard to explain.

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Re: P3 Maths

Postby BigDevil » Fri Apr 21, 2017 1:52 pm

I think the more important question is whether your child prefers model or algebra.

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