Lola and Dora combined their allowance of $9 each to buy a deck of playing cards for $10, they also bought $2 boxes of stickers and split the boxes evenly. How many packs of stickers did Dora get?
Let's think: Lola and Dora together have $9 / person x 2 people = $18. After buying the deck of cards they had $18 - $10 = $8. With 8 dollars they bought $8 / $2 / pack = 4 packs of stickers. Dora received 4 packs / 2 people = 2 packs of stickers.. The answer is: 2.

Jessica's class is going to a farm for a field trip. The school will bring all 35 students in the class plus 4 adult chaperones. The farm entrance fee for students costs $5 and $6 for adults. How much will the school pay for the farm entrance in all?
Let's think: The students' entrance fee cost $5 x 35 = $175. The adults' entrance fee cost $6 x 4 = $24. Therefore, the school will pay a total of $175 + $24 = $199 for the farm entrance.. The answer is: 199.

There are 14 kindergartners and 24 first graders and some second graders in Ms. Watson's class. Overall Ms. Watson has 42 students. How many second graders are in Ms. Watson's class?
Let's think: There are 14 + 24 = 38 kindergartners and first graders in Ms. Watson's class. There are 42 - 38 = 4 second graders in Ms. Watson's class.. The answer is: 4.

Tom needs to lower a rope down 6 stories. One story is 10 feet. The only rope being sold is 20 feet long but you lose 25% when lashing them together. How many pieces of rope will he need to buy?
Let's think:
He needs 10 * 6 = 60 feet. He loses 20 * .25 = 5 feet each time. So he gets 20 - 5 = 15 feet from each piece. That means he needs 60 / 15 = 4 pieces of rope.. The answer is: 4.