Ready Math Lesson 1 Vocabulary Quiz

What does it mean to put together two or more quantities to find the total of two or more numbers, or to find how many in all?

• unknown number

• equation

• add

• count on

What is the result of addition?

• count on

• sum

• add

• unknown number

What is a mathematical statement that uses an equal sign (=) to show that two things have the same value?

• open number line

• sum

• equation

• understand

What is an object or picture that represents a situation?

• model

• add

• equation

• addend

What is a number being added?

• understand

• count on

• open number line

• addend

What is a straight line with only the numbers important to a problem labeled?

• understand

• open number line

• count on

• model

What is a number that is missing or not known in a problem, and is often shown as a box or symbol?

• addend

• sum

• understand

• unknown number

What does it mean to start with one addend and count to find the total?

• count on

• model

• addend

• open number line

What does it mean to know the meaning of?

• sum

• add

• understand

• equation