Old Ch. 1A Main Concepts

What is a variable?

• A variable is a fixed value in a problem.

• A variable is a letter used to represent a value that can change.

• A variable is a constant that never changes.

Tags

CCSS.6.EE.A.2B

What is a constant?

• A constant is a number that does not change.

• A constant is a variable that changes in value during calculations.

• A constant is a symbol used to represent unknown quantities.

• A constant is a type of function that varies based on input values.

Tags

CCSS.6.EE.A.2B

Which of the following is NOT true of an expression?

• has an equal sign

• is a mathematical statement

• can have variables

• can have only numbers

Tags

CCSS.6.EE.A.2B

What does it mean to evaluate an expression?

• complete math operations to find the value

• you may need to plug in values for variables first (plug n chug)

• simplify with variables in the final answer

Tags

CCSS.6.EE.A.2C

What is absolute value?

• Absolute value is the square root of a number.
• Absolute value is the result of multiplying two numbers.
• The absolute value of a number is always positive.

• The absolute value of a number is its distance from zero on the number line.

Tags

CCSS.6.NS.C.7C

What are true of reciprocals?

• Two numbers are reciprocals if their sum is 0.

• They can be found by flipping the sign of a number from positive to negative or negative to positive.

• They are made by flipping the numerator and denominator in a fraction.

• Two numbers are reciprocals if their product is 1.

Tags

CCSS.7.NS.A.2A

In PEMDAS, what else does the P stand for BESIDES "parentheses"?

• radicals

• absolute values

• fractions

• brackets

• braces

What is a radical?

• absolute value symbol

• a division box

• square root symbol

• one section of the coordinate plane

Tags

CCSS.8.NS.A.1

What are the terms of an expression?

• the math operation symbols

• the variables

• the numbers without variables

• the parts to be added or subtracted

Tags

CCSS.6.EE.A.2B

What are like terms in an expression?

• terms with only the same variables

• terms with the exact same variables raised to the same exponent

• terms with exponents

• terms that can't be combined

Tags

CCSS.6.EE.A.2B