When you see a large fraction, always reduce with the largest factor first. For example, What is the value of this expression in decimal form? Obviously, this is divisible by 2, but we can do better than that. Did you notice that all of them are divisible by 11? If we reduced by 2, we […]
Tag: Math
The Chicken & Rabbit Problem
The Chicken & Rabbit problem is a great math and logic question. Here is the question: There are some chickens and rabbits. The number of total legs is {number} and the total number of eyes is {number}. How many chickens/rabbits are there? There are also many different ways to express this: There are some {first […]
How To Solve Two Variable Equations
There are a lot of situations where we find ourselves with two-variable equations, but it does seem frustrating trying to solve them. Here’s an example (where the answer is rounded to nearest integer): x + 3y = 7 5x – 2y = 1 There are two methods for solving this equation. Method 1: x + […]
Estimation
Estimation is the process of finding an estimate, and that is usable in many ways. The value is usable because it is guessed from the best information he/she has. For example, you want to know the number of atoms a plastic bag has. The information you have is: Atoms are very small. That means the […]
Measurement
Measurement means the process of measuring stuff. You can measure to engineering, construction, and to almost all everyday objects. One way to measure things is by using a meterstick. Or ruler. Or even measure tape! If you like, you could measure the following objects in length and height: A leaf A book A mug A […]