Ravi had 7 times as many trading cards as Zack. After Ravi gave 90 trading cards to Zack, the two boys had the same number of trading cards. How many trading cards did Ravi have at first?
Opening the drawing…
MathBrush is being tested with a few parent groups, and every solution on the site is open to them. If you were given a code, it goes in once and this device remembers it. 65 worked examples are free to everyone without one.