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Vocabulary - Chapter 1

Across
When the last digit of a number is 1,3,5,7, or 9, the number is ....
An ordered set of numbers or objects.
You can _______ a number to the nearest ten or hundred to find a number that tells about how much or about how many.
The result of adding two or more numbers.
Numbers that are easy to compute mentally and are close to the real numbers.
When you add two or more numbers in any order and get the same sum.
A number close to an exact number.
Taking one number away from another.
Down
The sum of any number and zero is that number.
The result of a subtraction problem.
When the last digit of a number is 0,2,4,6, or 8, the number is ....
You can group addends in different ways and still get the same sum.
A number that is added to another.
To put together (two or more numbers or amounts) to calculate their total value.