Mathematics

Hello everyone! My name is Eric. I like mathematics very much. It could helps everyone solve many problems.
Math is everywhere! For example, you could go to the supermarket and buy goods. If the price is ten dollars, and you give the cashier fifteen, the cashier will use a subtraction equation to solve that you need five dollars of change, because fifteen minus ten equals five.
Math is useful! Say there’re five different kinds of fruit. There are thirty fruit in each kind. You could find out how many there are in all by multiplying, by using thirty times five, and get one hundred fifty.
Math is interesting! There are many “rules” in to it. I’ll show you one. Take any number and multiply it by eighteen. Then add every digit of the number you get, if the number you get is greater than 9, add every digit again until you get a one-digit number, and the number must be 9. For example, 3×18＝54,
5＋4＝9.
At last, mathematics is very important. It could can help you solve many problems.
Thank you everyone!