A baseball bat and a ball cost $1.10 together, and the bat costs $1.00 more than the ball, how much does the ball cost? Did you arrive at 10 cents? If so, you’d be wrong. Here’s the solution: Although $1.00 + $0.10 does equal $1.10,  if you take $1.00 – $0.10 you get $0.90, but … Continue reading The Bat, Ball Problem