We have a question: Norris saved $29 in September. He saved $25 in October and $31 in November. Then Hugo spent $75 on an online game. How much money does Norris have left?
And an answer: 10
So how you got the answer?
The total amount of money saved is $29 + $25 + $31 = $85. Norris has $85 - $75 = $10 left.

We have a question: James visits 20 houses to try and make a sale. He manages to sell something in every house. The next day he visits twice as many houses but only sold to 80% of houses. If he sold two things at each house in each of the two days, how many items did he sell?
And an answer: 104
So how you got the answer?
The second day he visited 20 * 2 = 40 houses. So he sold things at 40 * .8 = 32 houses. So in total he sold things at 20 + 32 = 52 houses. That means he sold 52 * 2 = 104 things.

We have a question: Alia has 2 times as many markers as Austin. Austin has one-third as many markers as Steve does. If Steve has 60 markers, how many does Alia have?
And an answer: 40
So how you got the answer?
Austin has 60 / 3 = 20 markers. Alia has 20 * 2 = 40 markers.