Algebra Notation

What is the main purpose of using letters in algebra?

• To replace numbers permanently

• To confuse students

• To represent unknown values

• To make math look more complex

In algebra, what does it mean when two letters are placed next to each other, like 'ab'?

• They are being subtracted

• They are being added

• They are being divided

• They are being multiplied

What is the term for the number in front of a variable, like the '4' in '4x'?

• Exponent

• Coefficient

• Variable

• Constant

What is the result of multiplying a number by itself called?

• Doubled

• Halved

• Cubed

• Squared

What is an algebraic expression?

• A group of numbers and letters without an equal sign

• A sentence with an equal sign

• A solved equation

• A single number