Digit - A symbol used to write numbers. (ex: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9), Number Line - A line with numbers on it, in order at set intervals., Standard Form - A number written with one digit for each place value. Ex: 345, Expanded Form - A way to write numbers by showing the value of each digit. Ex: 345 = 300+40+5, Word Form - A way to write numbers by using words. Ex: Three hundred forty five, Place Value - The value given to a digit by its place in the number. The place value for the digit 5 in the number 354 is 50 or 5 tens. , Estimate - A number that is not exact; a careful guess., Periods - A group of 3 digits in a number. Periods are separated by a comma and start from the right of the number., Is equal to - The same value. Symbol: =, Greater than - When comparing numbers, the number with a bigger value is greater than. Ex: 65>56 65 is greater than 56., Less than - When comparing numbers, the number with less value. Ex: 65>56 56 is less than 65,
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Math Vocabulary Unit 1
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