Hi.
I believe that the best way to learn mathematics is by solving problems. Calculating, calculating, and calculating again—starting with the simplest exercises, learning the basic patterns, and gradually progressing to more difficult ones.
In connection with this, I decided to create a place where at least one problem will appear every day. Each problem will be solved and explained step by step, showing where everything comes from and what follows, as well as what you need to know to solve it on your own.
However, dear reader, I encourage you to first try solving the problems on your own, and only if you encounter difficulties, then use the solution and the explanation.
Each problem will be available for download as a PDF file.
I wish you productive studying 🙂
So, let's get started 🙂
Today, we will start with natural numbers.
Let's consider how to calculate how many natural numbers are less than a given number and divisible by a specific number.
The problem is below. Take a look 🙂
Łukasz Zdanowicz
Creator of the PhiBoard app. A mathematics enthusiast who firmly believes that building a modern engineering workforce will create prosperity both individually and nationally. Personally, a chess player and a book lover.
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