Can a ten year old child solve this?

in math •  7 years ago 

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Yes ofc im sure Einstein and Stephen Hawking did it xD

definitely more than $20! the only information i got is 1 handphone cover + 1 pouch = $20.

Yes, I think so. Although my five children are showing me new ways to solve math problems all the time and I am a 34 year old woman lol.
It cost $20 for one handphone cover and one 1 pouch as that was the difference between Sandy and Zara. In total 5 handphones and 5 pouches were needing to be purchased _$20 x 5= $100

I probably could have. But having since grown up and gotten my PhD in math, I may not be the best indicator.

Really, it boils down to 3 things. The same three things it always boils down to:

  1. How good is the teacher.
  2. How good is the student.
  3. How good were the previous examples that led to this question.

People often forget about number 3, but unless the student has particularly good intuitions, most students at this age (having brains that have not developed solid abstraction skills) require sample problems that mimic this problem to a high degree.

$100