Vocabulary 1
Symbols
Operations
Vocabulary
Examples
100

To add one by one to find the total

Count

100

What does this symbol mean?

>

Greater than

100
What is addition?

adding something to something else

100
To combine numbers togther

To add

100

Write/Say an addition equation

Answer varies

200

To find the answer

Solve

200
What does this symbol mean?

=

equal/equal to

200

What is subtraction?

When you take a number away from another number

200

To take one number from another

To take away

200

Write/Say a subtraction equation

Answers vary

300

The answer to a equation

Solution

300

What does this symbol mean? 

<

less than

300
What is a sum?
The answer to an addition problem
300

What does it mean to compare?

To find things that are the same or different

300

Compare these numbers

12 and 24

Greater than, less than, or equal to

12 < 24

400

A number sentence that has two equal sides and separated by an equal sign

Equation
400

What does this symbol mean?

+

to add
400

What is the difference?

The answer to a subtraction problem

400

What is a symbol?

Something that represents something

Operations

400

Compare these numbers

50 and 25

Greater than, less than, or equal to

50 > 25

500

A combination of numbers and operations to solve

Number sentence

500

What does this symbol mean?

-

to subtract

500

What is an unknown number?

A number we do not know/need to solve for

500

What does it mean to measure?

To find the size in number of an object

500

Solve this equation

20+13

33