Dan has $ 2. He bought a candy bar for $ 6 and a chocolate for $ 3. How much money did he spend to buy candy bar than he did to buy chocolate?
: 

Dan has $2. 
He buys a candy bar for $6. 
That means he spends $4 on the candy bar. 
He buys a chocolate for $3. 
That means he spends $1 on the chocolate. 

$4 is more than $1, so Dan spent more money on the candy bar than he did on the chocolate.