Level 383 Level 385
10 words 0 ignored
Ready to learn Ready to review
Check the boxes below to ignore/unignore words, then click save at the bottom. Ignored words will never appear in any learning session.
commutative property of addition
If the order of the terms changes, the sum stays the same.
the answer to a subtraction problem
Numbers that are close to the given numbers that make estimation or mental calculation easier.
what you are looking for when you round a number
go the the nearest given place value; underline, look behind, the circled number tells you where to go.
you find this if you do not need an exact answer
you find this when solve a problem using the actual numbers given
associative property of addition
When the grouping of terms changes, the sum stays the same.
Identity Property of Addition
The sum of 0 and any number is that number.