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1 Students identify and use the arithmetic properties of subsets of integers and rational, irrational, and real numbers, including closure properties for the four basic arithmetic operations where applicable:

1.1Students use properties of numbers to demonstrate whether assertions are true or false.

2Students understand and use such operations as taking the opposite, finding the reciprocal, taking a root, and raising to a fractional power. They understand and use the rules of exponents.

#### Example Problems

$$-5-(3-4\cdot(-2))=$$

$$\frac{2(1-5^2)}{1-3^2}=$$