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45 (Exam Math ONET ก.พ.-64-ข้อ 3)

 

Cool Facts About Maths

5. Conversely, “one” is the only number that is spelt with letters arranged in descending order.

6. From 0 to 1000, the only number that has the letter “a” in it is “one thousand”.

7. ‘Four’ is the only number in the English language that is spelt with the same number of letters as the number itself.

8. Every odd number has an “e” in it.

9. The reason Americans call mathematics “math”, is because they argue that “mathematics” functions as a singular noun so ‘math’ should be singular too.

10. Markings on animal bones indicate that humans have been doing maths since around 30,000BC.

เฉลย ข้อ 3 (ข้อสอบ คณิต ONET-ก.พ.57)

ข้อสอบคณิตศาสตร์ ONET 2557

The study of topology can be used to study the properties of knots, which are loops of rope or string that are tied in a specific way. Amazing Fact About Maths

The concept of probability, which deals with the likelihood of events occurring, was first introduced in the 17th century.

The field of cryptography, which deals with the study of codes and ciphers, has its roots in mathematics.

ข้อ 3 (ข้อสอบ คณิต ONET ก.พ.-57)

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Amazing Fact About Maths

The Greek mathematician Archimedes was one of the first to use the concept of infinity in his work.

The concept of vectors, which are quantities that have both magnitude and direction, was first introduced in the 19th century. 

The concept of topology, which deals with the properties of objects that are preserved even when they are stretched or distorted, was first introduced in the 18th century.

เฉลย ข้อ 2 (ข้อสอบ คณิต ONET-ก.พ.57)

Amazing Fact About Maths

The mathematical constant pi (π) is the ratio of a circle's circumference to its diameter, and has been known since ancient times.

The concept of imaginary numbers, which are numbers that involve the square root of negative numbers, was first introduced in the 16th century.

The formula E=mc^2, which relates energy to mass, was developed by Albert Einstein in 1905.

ข้อ 2 (ข้อสอบ คณิต ONET ก.พ.-57)

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Amazing Fact About Maths

The concept of infinity was first introduced by the ancient Greeks.

The shortest proof of Fermat's Last Theorem, which states that there are no whole number solutions to the equation a^n + b^n = c^n for n>2, was over 100 pages long.

The ancient Babylonians used a sexagesimal system (based on the number 60) for mathematics, which is why we still use 60 seconds in a minute and 60 minutes in an hour.