Understanding Algebraic Expressions and Like Terms

What is an algebraic expression?

• A statement that only includes numbers

• A combination of numbers and variables without an equal sign

• A mathematical statement with an equal sign

• A sentence that describes a mathematical operation

Which of the following is a coefficient?

• 9 in 9x

• The equal sign in an equation

• x in 9x

• The plus sign in an expression

What makes terms 'like terms'?

• They have the same coefficient

• They are both constants

• They have the same variable and exponent

• They are both variables

Which of the following pairs are like terms?

• 4m and 4n

• 7x^2 and 2x^2

• 5a and 5b

• 3x and 3y

How do you combine like terms in an expression?

• Multiply the coefficients

• Divide the coefficients

• Add or subtract the coefficients

• Ignore the coefficients

What is the result of combining 13k and -3k?

• 10k

• 16k

• 13k

• 0k

How do you handle fractions when combining like terms?

• Convert them to decimals

• Ignore them

• Round them to the nearest whole number

• Use a calculator to find a common denominator

What is the result of combining 1.6a, -a, and -0.6a?

• 3a

• 1a

• 0a

• 2a

What is the perimeter of a parallelogram with sides 3.5x - 4 and 2x?

• 11x - 8

• 10x - 8

• 11x + 8

• 10x + 8

What does the perimeter of a shape represent?

• The sum of all its sides

• The difference between its longest and shortest sides

• The area of the shape

• The product of its length and width