We have a question: Ivan has a piggy bank that can hold 100 pennies and 50 dimes. How much, in dollars, does Ivan have if he has filled his two piggy banks with those coins?
And an answer: 12
So how you got the answer?
Ivan has 50 x 10 = 500 cents from the 50 dimes in his one piggy bank. So, he has a total of 100 + 500 = 600 cents in one of his piggy banks. Since 100 cents is equal to 1 dollar, then Ivan has 600 / 100 = 6 dollars from one of his piggy banks. Therefore, Ivan has a total of $6 x 2 piggy banks = $12 from his two piggy banks.

We have a question: Nathan went to the arcade. He played the air hockey game 2 times and the basketball game 4 times. If each game cost 3 tokens, how many tokens did he use?
And an answer: 18
So how you got the answer?
Nathan played a total of 2 air hockey + 4 basketball = 6 games. This cost him 6 games x 3 tokens each = 18 tokens.

We have a question: On Sunday Trey is going to do some chores at home. First, he wants to make a To Do list and count up how many things he has to do that day and how long it should take. He has several items under 'clean the house,' 'take a shower' and then 'make dinner.' In total there are 7 things to do to clean the house; 1 thing to do to take a shower; and 4 things to do to make dinner. If everything on Trey's list takes 10 minutes to do, how many hours total will it take to complete Trey's list?
And an answer: 2
So how you got the answer?
On Trey's list there are 7 + 1 + 4 things to do = 12 things to do in total. Each thing takes 10 minutes to do, so 10 minutes x 12 things = 120 minutes. An hour has 60 minutes in it, so 120 minutes / 60 minutes in an hour = 2 total hours it will take Trey to complete his list.