# GR6 Exponents and Order of Operations

## 21 terms

### Compatible number

Numbers that are close to the given numbers that make estimation or mental calculation easier.

### overestimate

An estimate that is greater than the exact answer.

### Underestimate

An estimate that is less than the exact answer.

### extraneous information

Information that is not needed to solve the problem.

### find a pattern

When pattern recognition is used to solve problems, it involves a more active search. Often students will construct a table, then use it to look for a pattern.

### guess and test

An educated guess is based on careful attention to pertinent aspects of the problem, plus knowledge from previous related experiences.

### make a diagram/picture

This strategy provides a way of depicting the information in a problem to make the relationships apparent.

### make a table/chart/graph

Organizing data into a table helps children to discover a pattern and to identify information that is missing.

### solve a simpler problem

Making an analogous but simpler problem may aid in ascertaining how to solve the problem.

### work backwards

Students are able to determine the endpoint and work backwards.

### work backwards

Students are able to determine the endpoint and work backwards.

### exponent

The number that indicates how many times the base is used as a factor.

### order of operations

A rule for evaluating expressions: first perform the operations in parentheses, then compute powers and roots, then perform all multiplication and division from left to right, and then perform all addition and subtraction from left to right.

### parantheses

Used to group numbers together

### difference

The result when one number is subtracted from another.

### factor

A number that is multiplied by another number to get a product.

### product

The result when two or more numbers are multiplied.

### products

The result when two or more numbers are multiplied.

### quotient

The result when one number is divided by another.

### rounding

Replacing a number with an estimate of that number to a given place value.

### sum

The result when two or more numbers are added.