7th - Expressions, Equations, Integers Fall 2024 Semester Review

Front

What is an integer?

Back

An integer is a whole number that can be positive, negative, or zero, but does not include fractions or decimals.

Front

What does it mean to simplify an expression?

Back

To simplify an expression means to combine like terms and reduce it to its simplest form.

Front

What is the result of adding a positive integer and a negative integer?

Back

The result depends on the absolute values of the integers; if the positive integer is larger, the result is positive, and if the negative integer is larger, the result is negative.

Front

What is the formula to find the final elevation after a change?

Back

Final elevation = Initial elevation + Change in elevation.

Front

If a diver starts at 5 m and changes -16 m, what is the final elevation?

Back

Final elevation = 5 + (-16) = -11 m.

Front

How do you solve for a variable in an equation?

Back

To solve for a variable, isolate the variable on one side of the equation using inverse operations.

Front

What is the value of k if k + 2 = 4?

Back

k = 4 - 2 = 2.

Front

What does it mean to evaluate an expression?

Back

To evaluate an expression means to calculate its value by substituting numbers for variables.

Front

What is the process of combining like terms?

Back

Combining like terms involves adding or subtracting coefficients of terms that have the same variable raised to the same power.

Front

Back