Math and science have many concepts together and they sometimes are used together to solve both math and science problems. Science has to do with many experiments and the earth. Math has to do with equations and word problems. They are alike in some ways too. They are used by many people everyday and are very helpful in jobs and in peoples life's. Math is used in science when you have to know some existing strategies. Science is also used in math because there might be a problem where you need to use science in a math problem or science in a math problem. These are some ways math ans science have some concepts alike together.   

Negative numbers are the opposite of positive numbers and they always have a - negative sign before it. They are in our lives because when you go to school and study math they teach us about negative numbers. These numbers are really important because they represent things like money. For example, if you have -45 dollars that means that you owe that person of you need that kinda of money or even that you got taken away. They are useful in math equations because they usually run on a number line.