Busy. Please wait.
or

Forgot Password?

Don't have an account?  Sign up
or

taken

why

Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
Know
remaining cards
Save
0:01
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

Normal Size     Small Size show me how

Quehl math voc.ch.2

Quehl math vocabulary chapter 2

TermDefinition
addends numbers added together to give a sum
sum the answer when adding two or more addends
commutative (order) property of addition numbers can be added in any order and the sum will be the same
associative (grouping) property of addition the grouping of addends can be changed and the sum will be the same
identity (zero) property of addition the sum of any number and zero is that same number
fact family a group of related facts using the same numbers
difference the answer when subtracting two or more numbers
estimate to give an approximate answer or number
rounding replacing a number with a number that tells about how much or how many to the nearest ten, hundred, thousand, and so on
front-end estimating a way to estimate a sum or difference by using the first digit of each number
compatible numbers numbers that are easy to add, subtract, multiply or divide mentally
overestimate an estimate that is greater than the exact number
underestimate an estimate that is less than the exact number
Created by: wildflower