Reasoning & answer: CoT: He increases the length to 13 + 2 = 15 feet. He increases the width to 18 + 2 = 20 feet. So the rooms are 15 * 20 = 300 square feet. So he has 1 + 3 = 4 rooms of this size. So he has 4 * 300 = 1200 square feet of rooms this size. He also has one room of size 300 * 2 = 600 square feet. So he has 1200 + 600 = 1800 square feet of rooms.
The answer: 1800
Question: James has a room that is 13 feet by 18 feet. He increases each dimension by 2 feet. He then builds 3 more rooms of equal size and 1 room of twice that size. How much area does he have?

Reasoning & answer: CoT: He needs 1 can of frosting per layer cake and he needs to make 3 layer cakes so that's 1 * 3 = 3 cans of frosting. There are 6 dozen cupcakes,12 single cakes and 18 pans of brownies for a total of 6 + 12 + 18 = 36 orders. Each of the 36 orders needs 1 / 2 can of frosting so they need 36 * .5 = 18 cans of frosting. He needs 3 cans of frosting for the layer cakes and 18 cans for the remaining items for a total of 3 + 18 = 21 cans of frosting.
The answer: 21
Question: Paul uses 1 can of frosting to frost a layer cake. He uses a half can of frosting for a single cake, or a single pan of brownies, or a dozen cupcakes. For Saturday, he needs to have 3 layer cakes, 6 dozen cupcakes, 12 single cakes and 18 pans of brownies ready and frosted for customer pick up. How many cans of frosting will he need?

Reasoning & answer: CoT: The old budget was $75 because 15 x 5 = 75. They are adding $15 to the budget because 75 x .2 = 15. The new budget is $90 because 75 + 15 = 90. They can buy 10 softballs on the new budget because 90 / 9 = 10.
The answer: 10
Question: The school decided to add 20% to the gym budget. In a normal month, they could buy 15 dodgeballs for $5 each if they spent the entire budget on that. If they only buy softballs instead, which cost $9 each, how many can they buy with the new budget?

Reasoning & answer: CoT: If 30 kids each make 8 cards, they will have made 240 cards because 30 * 8 = 240. Since 1000 - 240 = 760, they need to make 760 more cards.
The answer: 760
Question:
Maddy's 4th grade class needs to make 1000 Valentine's Day cards to get a pizza party. There are 30 kids in the class. If everyone makes 8, how many more cards will they need to make to get a pizza party?