Some mysterious mathematics facts | hidden facts in mathematics

Some mysterious mathematics facts | hidden facts in mathematics

# The Answer Is 2

1)Think of a number.

2)Multiply it by 3.

3)Add 6.

4)Divide this number by 3.

5)Subtract the number from Step 1 from the answer in Step 4.

The answer is 2.

Some mysterious mathematics facts | hidden facts in mathematics

# Same Three-Digit Number

1)Think of any three-digit number in which each of the digits is the same. Examples include 333, 666, 777, and 999.

2)Add up the digits.

3)Divide the three-digit number by the answer in Step 2.

Some mysterious mathematics facts | hidden facts in mathematics

# Multiply Large Numbers in Your Head

1)Subtract each number from 100.

2)Add these values together.

3)100 minus this number is the first part of the answer.

Multiply the digits from Step 1 to get the second part of the answer.

# Subtracting from 1,000

Here’s a basic rule to subtract a large number from 1,000: Subtract every number except the last from 9 and subtract the final number from 10

For example:

1,000 – 556

Step 1: Subtract 5 from 9 = 4

Step 2: Subtract 5 from 9 = 4

Step 3: Subtract 6 from 10 = 4

The answer is 444.

# Multiplying by 9

This is an easy method that is helpful for multiplying any number by 9. Here is how it works:

Let’s use the example of 9 x 3.

Step 1: Subtract 1 from the number that is being multiplied by 9.

3 – 1 = 2

The number 2 is the first number in the answer to the equation.

Step 2: Subtract that number from the number 9.

9 – 2 = 7

The number 7 is the second number in the answer to the equation.

So, 9 x 3 = 27

# Percentage

Finding a percentage of a number can be somewhat tricky, but thinking about it in the right terms makes it much easier to understand. For instance, to find out what 5% of 235 is, follow this method:

Step 1: Move the decimal point over by one place, 235 becomes 23.5.

Step 2: Divide 23.5 by the number 2, the answer is 11.75. That is also the answer to the original equation.

People also ask

What is the biggest mystery of mathematics?

One of the greatest unsolved mysteries in math is also very easy to write. Goldbach's Conjecture is, “Every even number (greater than two) is the sum of two primes.” You check this in your head for small numbers: 18 is 13+5, and 42 is 23+19. Computers have checked the Conjecture for numbers up to some magnitude.

What is the hardest known math problem?

The longest-standing unresolved problem in the world was Fermat's Last Theorem, which remained unproven for 365 years. The “conjecture” (or proposal) was established by Pierre de Fermat in 1937, who famously wrote in the margin of his book that he had proof, but just didn't have the space to put in the detail.

Is 25 a special number?

The number 25 is a very special number in numerology. It is considered to be an angel number, which means that it has great power and potential to lead into a holy year. The number 25 is also associated with the planet Mars, which is the planet of war and aggression

Who found zero?

"Zero and its operation are first defined by [Hindu astronomer and mathematician] Brahmagupta in 628," said Gobets. He developed a symbol for zero: a dot underneath numbers.

What are the 7 unsolved maths problems?

Clay “to increase and disseminate mathematical knowledge.” The seven problems, which were announced in 2000, are the Riemann hypothesis, P versus NP problem, Birch and Swinnerton-Dyer conjecture, Hodge conjecture, Navier-Stokes equation, Yang-Mills theory, and Poincaré conjecture.

Related searches

• hidden facts in mathematics
• 10 interesting facts about maths
• amazing facts about numbers in maths
• interesting facts about mathematics in india
• amazing facts about maths pdf
• maths facts for kids
• amazing facts of maths wikipedia
• historical facts about mathematics
• some mysterious mathematics facts
• some facts about math
• mysterious math
• mysteries of mathematics
• a fact about math
• a random math fact