Problems of the Week: May 30

Lower Elementary:

Question: In Mrs. Olson’s first grade class, math lessons start at 1:05 pm and end 65 minutes later. At what time are Mrs. Olson’s math lessons over?

Upper Elementary:

Question: Matthew learns in history class that the first presidential election in the United States happened in 1789, the second happened in 1792, and the rest have happened every 4 years since then. The most recent election was in 2016. How many presidential elections have happened in the United States in total?

Middle School:

Question: Jack’s science homework is to measure the temperature outside at 7 pm each day for a week. On Monday, his thermometer reads 77°F, but his homework asks for the temperature in Celsius. Since the temperature in Celsius is equal to five-ninths of the quantity 32 less than the temperature in Fahrenheit, what should Jack write down on his homework?

Algebra and Up:

Question: One half of Hailey’s overall English grade comes from test scores. One fifth of her grade comes from quizzes. Another fifth comes from homework. The rest comes from classroom participation. If Hailey has an average test score of 92%, an average quiz score of 80%, an average homework score of 75%, and a classroom participation score of 100%, what is her overall grade as a percentage?