It was Jae & El’s birthday recently and we bought some boxes of Pocky.
These are popular cream-coated biscuit sticks from Japan.
El chose the almond sticks, which come in 2 packs of 7 sticks in a box.
Jae chose the chocolate sticks, which come in 2 packs of 25 sticks in a box.
They tried to work out a fair trade.
How many of Jae’s chocolate sticks should be exchanged for each of El’s almond sticks so that it is as fair as possible?
After discussing, the boys struck a deal that both parties are happy with.
(Financial trading lesson 101 
)
This is how we do high-order thinking math without drills.
