Njsla Algebra I

Which one of these is a TERM

• 5x + 2

• 6y

• x + y = z

• none of the above

Which of these describes an EXPRESSION

• two or more terms linked with an operation

• two or more terms linked and with an equals sign

• a sentence about algebra

• a maths sign (e.g. + - x or divide)

In this expression (2x + 3), what is the 2 called

• a constant

• a variable

• a coefficient

• any of the above

What must an algebra expression have to turn it into an EQUATION?

• two or more numbers

• an equals sign

• an 'x' and a 'y'

• two or more letters

What is a variable?

• another name for algebra

• the answer to an algebra equation

• a number in an equation that is multiplied by a term

• a 'letter' in an equation whose value can change or is unknown

Which of these is NOT a term?

• 6x

• y

• 3x - 2

• 8xy

In algebra which operations do we NOT write?

• addition and subtraction

• multiplication and division

• addition and multiplication

• subtraction and division

Which of these is NOT true in algebra?

• We always write the "letter" first

• We can show multiplication with a number in front of brackets

• We can link two or more terms to make an expression

• We show division by using a "fraction"

Expand and simplify

2 (a+b)

• 2ab

• 2a + b

• 2a + 2b

• 2(ab)

4 (d + 2f)

• 4d + 2f

• 4d + 8f

• 4d2f

• 4d2f