Use the associative law of addition to write an expression equivalent to $(2x+y)+z$.

Factor: $14 x+7$.
Solution

$$\begin{array}{lll} 14x+7 &=\square \cdot 2x + \square \cdot 1 & \text{Factoring each term using a common factor}\\ &=\square(2x+1) & \text{Factoring out the common factor} \end{array}$$

Choose from the following list of words to complete each statement. Not every word will be used. \

$$\begin{array}{ll} \text{absolute value} \quad & \text{rational number} \\ \text{integer} \quad & \text{repeating} \\ \text{irrational number} \quad & \text{terminating} \\ \text{opposite} & \text{whole number} \\ \end{array}$$

If a number is a(n) $\underline{\qquad \qquad \qquad}$, it is either a whole number or the opposite of a whole number.

Choose from the following list of words to complete each statement. Not every word will be used. \

$$\begin{array}{ll} \text{add} \quad & \text{numerator} \\ \text{composite} \quad & \text{opposite} \\ \text{denominator} \quad & \text{prime} \\ \text{multiply} & \text{reciprocal} \\ \end{array}$$

A(n) $\underline{\qquad \qquad \qquad}$ number has exactly two different factors.

Choose from the following list of words to complete each statement. Not every word will be used. \

$$\begin{array}{ll}\text { associative } & \text { factors } \\ \text { commutative } & \text { product } \\ \text { distributive } & \text { sum } \\ \text { equivalent } & \text { terms } \end{array}$$

Changing the order of multiplication does not affect the answer. This is an example of a(n) $\underline{\qquad \qquad \qquad}$ law.

Choose from the following list of words to complete each statement. Words may be used more than once or not at all. \

$$\begin{array}{ll}\text { even } & \text { positive } \\ \text { negative } & \text { reciprocal } \\ \text { odd } & \text { undefined } \\ \text { opposite } & \text { zero } \end{array}$$

The product of a(n) $\underline{\qquad \qquad \qquad}$ number of negative numbers is negative.

Choose from the following list of words to complete each statement. Words may be used more than once or not at all. \

$$\begin{array}{llll} \text{add} & \text{identity} & \text{like} & \text{negative}\\ \text{positive} & \text{subtract} & \text{zero} \\ \end{array}$$

To add $-1+8,\ \underline{\qquad \qquad \qquad}$ $1$ from $8$ and make the answer $\underline{\qquad \qquad \qquad}$.

Write an algebraic expression: Nine less than the product of two numbers.

Classify the statement as either true or false.
$3t+1=7$ and $8-2=9$ are both equations.

Find $-x$ when $x$ is $-10$.

Write each of the following in words. \

$$-3-(-n)$$

Use the commutative law of multiplication to write an equivalent expression. \

$$7x$$

Graph $-2.5$ on the number line.

Multiply. \

$$-8 \cdot 7$$