By the time the first white settlers arrived, Native Americans knew how to grow almost 100 different kinds of crops. These were used as medicines and dyes, as well as food. In addition to gathering and farming, most Native Americans hunted for meat. In the 1500s, the Spanish brought horses to America.
more ... The operation that reverses the effect of another operation. Example: Addition and subtraction are inverse operations. Start with 7, then add 3 we get 10, now subtract 3 and we get back to 7. Another Example: Multiplication and division are inverse operations. Start with 6, multiply by 2 we get 12, now divide by 2 and we get back to 6.
In math, what is the definition of order of operations? A math equation can look intimidating â until you use the order of operations to work it out bit by bit. If multiplication, division, powers, addition, parentheses, and so on, are all contained in one problem, you work them out in a particular order (thus, the order of operations). To begin, work within parentheses ( ), then brackets [ ], and then braces { } from innermost and work outward.