Blog - K8

Introduction In a car, a car racer knows that with every rev of the engine, the odometer needle climbs steadily 7 times. If he revs it seven times without the odometer needle falling at all, if that is all possible, how many times will he rev his engine to reach 35 miles per hour? Consider […]

Introduction In a large zoom meeting, there are 49 students in it. With this large of a class, the teacher wants the students to answer questions, but not all at the same time. That would be too difficult to manage with all of those answers coming into the chat box. You decide to equally divide […]

Let’s say that you won $20 from a lottery scratch off. You cash it in and want to share this instant winning money with your friends. You need to share it equally. That means you want to keep an equal amount of money and share equally the rest with your 3 friends. Can you do […]

As an online presenter, you have a presentation coming up with a large group of 27 attendees. You want to make sure that everyone in the class not only participates but understands the information. Near the end of the presentation, you want each student to type in their answers to a short quiz. However, as […]

Introduction On a television show that you are watching, you notice quite often that the detectives need clues within the first 48 hours to solve a crime. If they don’t get a clue within the first 48 hours, it is likely that the case may turn cold. Detectives work very hard during the first 48 […]

Have you ever had one of those days? You have been super busy all week, but everything is due at the end of the day. So, you have 24 hours to get everything on your to-do list finished. It’s a tall order. Let’s look at the list. Each item on your to-do list below will […]

Introduction As you and your family are driving down the road, you notice a sign that reads “38 miles to the next town.” That seems okay because you have some gas in your car. Think about if your car will make it to the next town for gas if you know that each gallon of […]

Twenty-five is an odd number that is between twenty-four and twenty-six. It is the square of 5 and is also the fifth square number after 1, 4, 9, and 16. What’s cool about this number is that adding the squares of 3 and 4 will give us the square of 5! Does this excite you […]

Time is the seemingly irreversible continuity of existence and events that occur from the past, through the present, and into the future – and the number thirty is closely related to how we measure time. We measure time by seconds, minutes, hours, weeks, months, or even years. But what makes 30 a significant number in […]

Triangular numbers are numbers that may be represented by dots in such a way that they will form an equilateral triangle – where there is equal number of dots on each side. Forty-five is one of these triangular numbers. What makes 45 more interesting is that the sum of all single-digit numbers is 45. So, […]