It's difficult not to struggle with Maths in secondary school when you have a teacher who scares and intimidates you (like I did at some point). In such situations, mathematics just seems like the highest mountain in one's life that one can neither climb over nor breakthrough. When I finally got the hang of Maths, I wondered why it had been such a big deal all along. These are some useful Maths hacks that no one mentions in schools. They are useful for all ages, check them out.
1. How to easily remember 9 times table
3. Solving fractions just got easier.
4. How to find fractions of whole numbers fast and easy
5. For those times when the question forgets to include the value of pi
6. Now you can multiply any number by 11 in your head.
7. And multiply large numbers in seconds, all in your head!
8. They say this is how the Japanese do Maths!
9. What day of the week falls on what day?
You might be confused looking at the picture below, but the math is actually quite simple (albeit a bit elaborate). You'll need the codes HERE, which will help you master this.
July simply has a code of 5.
20th is 6 because 7 goes into 20 twice, which is 14. 20 - 14 = 6.
2069 is 2 because the leap year code of 2068 is 1 and 2069 is 1 year after, so that's 2.
The math can be difficult at first because there are a lot of codes, but it works out incredibly well once you pick it up. Here's a separate example:
January 3, 2014 is a Friday, right? So, January, according to the table, is 6, and we handle days by using multiples of 7. We don't need to, so it's actually just 3 in this case. Next we need to know the closest leap year, which was 2012. That has a year code of 1 and 2013 is 2 years after, so 3 again.
We get 6 + 3 + 3 = 12 - 7 = 5! FRIDAY!
10. How to remember the 'greater than' and 'less than'signs: the alligator always eats the bigger number!
Images via Diply
good but improve difficulty level
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