Jeanne wants to ride the Ferris wheel, the roller coaster, and the bumper cars. The Ferris wheel costs 5 tickets, the roller coaster costs 4 tickets and the bumper cars cost 4 tickets. Jeanne has 5 tickets. How many more tickets should Jeanne buy? Give the rationale and then the answer.
Let's think step by step. The total number of tickets needed is 5 tickets + 4 tickets + 4 tickets = 13 tickets. Jeanne needs 13 tickets - 5 tickets = 8 tickets.. The answer is: 8.

Paolo has 14 coconuts, while Dante has thrice as many coconuts as Paolo. If Dante sold 10 of his coconuts, how many coconuts did he have left? Give the rationale and then the answer.
Let's think step by step. Dante has 14 x 3 = 42 coconuts. Therefore, Dante was left with 42 - 10 = 32 coconuts after he sold 10 of them.. The answer is: 32.

Joseph gave 23 cards to each of his 15 students and had 12 cards left. How many cards did Joseph have at first? Give the rationale and then the answer.
Let's think step by step. He gave 23 cards each to 15 students for a total of 23 * 15 = 345 cards. He has 12 cards left, so originally the number of cards was 345 + 12 = 357 cards.. The answer is: 357.