g4c1

=Grade 4 Math, Chapter 1=


 * Vocabulary**

__**expanded form:**__ A number written as the sum of the values of its digits. //Example:// 2,476 = 2,000 + 400 + 70 + 6

__**period**__: In a number, group of three digits, separated by commas, starting from the right


 * __standard form__:** A way to write a number showing only its digits.

__**rounding:**__ Replacing a number with a number that tells about how many or how much.

__**word form:**__ A number written in words. Example: Four thousand, six hundred, four.

__**decimal point**__: A dot used to separate dollars from cents or ones from tenths in a number.

__**digits:**__ The symbols 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9 used to write numbers.


 * __hundredth__**: One out of 100 equal parts of a whole.


 * __tenth__**: One out of 10 equal parts of a whole.

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