Mathematical Illusion...

[SC Cowboyfan]

Three kids go into a store to buy a present for their favorite teacher. They buy a pen for $60.00. As they are leaving, the shop owner decides to give them a $5.00 discount. He gives $5.00 dollars to the boy working for him to return to the children who have left the store.

The boy decides to keep $2 and returns $3 to the children that made the purchase....

Recalculating, the three kids each spent $19 so the total is $57.00. The boy kept $2.00 so the total is $59.00. What happened to the other $1.00?

 

[Kangaroo]

Three kids go into a store to buy a present for their favorite teacher. They buy a pen for $60.00. As they are leaving, the shop owner decides to give them a $5.00 discount. He gives $5.00 dollars to the boy working for him to return to the children who have left the store.

The boy decides to keep $2 and returns $3 to the children that made the purchase....

Recalculating, the three kids each spent $19 so the total is $57.00. The boy kept $2.00 so the total is $59.00. What happened to the other $1.00?

Not an illusion that is why you use brackets and have to follow a process in math. X=(60-5) +3/3

Because you have to add and subtract before you multiply or divide

One of your first rules in Algebra

 

[Eskimo]

The $60 broke down this way:

shopkeeper: 55
Boy who returned money: 2
3 kids: 3

So each child ended up spending $19 for a total of $57 spent. The shopkeeper got $55 and the boy pilfered $2 for himself.