Kitchen Table Math

Kitchen Table Math is a blog/wiki about doing math with your children.

One thing that caught my eye was a Russian textbook example: “Two cars leave simultaneously at 9 a.m. heading toward one another from different cities that are 210 km apart. The average speed of one car is 50 km/h while the other car averages 70 km/h. Come up with an appropriate question and answer it.”

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