Winston has 14 quarters. He then spends half a dollar on candy. How many cents does he have left? Give the rationale and then the answer.
Let's think step by step. Winston has 350 cents because 14 x 25 = 350. He spends 50 cents because $1 / 2 = 50 cents. He has 300 cents left at the end.. The answer is: 300.

Reina has three times the number of counters and four times the number of marbles as Kevin. If Kevin has 40 counters and 50 marbles, calculate the number of counters and marbles that Reina has? Give the rationale and then the answer.
Let's think step by step. If Kevin has 40 counters, and Reina has three, the number of counters Kevin has, Reina has 3 * 40 = 120 counters. Reina also has four times the number of marbles that Kevin has, meaning he has 4 * 50 = 200 marbles. In total, Reina has 120 counters + 200 marbles = 320 items.. The answer is: 320.

Janet has 9 cards more than Brenda. Mara has twice as many cards as Janet. How many cards do they have in all if Mara has 40 cards less than 150? Give the rationale and then the answer.
Let's think step by step. Mara has 150 - 40 = 110 cards. Janet has 110 / 2 = 55 cards since Mara has twice as many as Janet. Brenda has 55 - 9 = 46 cards since Janet has 9 cards more than Brenda. Therefore, they all have 110 + 55 + 46 = 211 cards.. The answer is: 211.