Math word problem - solve 2 variables given their sum and difference

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There are a few ways to solve for it. I am aware of 3. For the problem above, I tried to guess 1st. Because the numbers are easy. A few years ago I came across the bar model approach from "Math in Focus", because the school my daughter attends start adopting that math curriculum. Below is another similar word problem and my #barModel solution for it: the total number of adults and kids are 6872, and the number of adults are 2150 more than the number of kids.

## Math word problem - solve 2 variables given their sum and difference

## Math word problem - solve 2 variables given…

## Math word problem - solve 2 variables given their sum and difference

There are a few ways to solve for it. I am aware of 3. For the problem above, I tried to guess 1st. Because the numbers are easy. A few years ago I came across the bar model approach from "Math in Focus", because the school my daughter attends start adopting that math curriculum. Below is another similar word problem and my #barModel solution for it: the total number of adults and kids are 6872, and the number of adults are 2150 more than the number of kids.