Grade 6 • 3mo.

math strategy: how to find in quickly. Two numbers that when we add them we get 433 and when we subtract them it is 39 (the two exact numbers).

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Grade 6 • 3mo.

Explanation from Alloprof

This Explanation was submitted by a member of the Alloprof team.

Hi there!

Thanks for tuning in :)

It seems like you already asked this question? Just like my colleague answered, to solve this problem without using a trial and error method, you would have to use algebra:

(

x+y)+(x−y)=433+392𝑥=472

𝑥=472/2

𝑥=236

And then we would have to integrate that number in the first equation:

236+

y=433𝑦=433−236

y=197Just like my colleague said, keep in mind that this is a problem that couldn't be solved with this method as per the knowledge you learn in sixth grade!

Hope that helps!

Ariane