Mindblown: a blog about philosophy.
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Binary Numbers
Summary The binary number system is a base-2 number system. This means it only has two numbers: 0 and 1. The number system that we normally use is the decimal number system. It has 10 numbers: 0-9. Why use binary numbers? Binary numbers are very useful in electronics and computer systems. Digital electronics can easily…
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Roman Numerals
Skills needed: Multiplication Addition Subtraction Roman numerals were used by the Ancient Romans as their numbering system. We still use them sometimes today. You see them in the Super Bowl’s numbering system, after king’s names (King Henry IV), in outlines, and other places. Roman numerals are base 10 or decimal, like the numbers we use…
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Prime Numbers
Skills needed: Multiplication Division Addition Whole numbers What is a prime number? A prime number is a whole number with exactly two factors, itself and 1. Okay, maybe that’s a bit hard to understand. Let’s take a look at some examples: The number 5 is a prime number because it cannot be divided evenly by…
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Adam and the Dragon’s Treasure
Adam lived in a small village in the south of Poland near to the big city of Krakow. Adam’s favourite part of the day was dinner time. Not because his mother made the best food in the whole world, but because, at dinner time, the whole family would sit around the television and watch the…
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The Three Fish
Once, three fish lived in a pond. One evening, some fishermen passed by the pond and saw the fish. ‘This pond is full of fish’, they told each other. ‘We have never fished here before. We must come back tomorrow morning with our nets and catch these fish!’ When the eldest of the three fish…
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