Topic 1

Vocabulary

digits- the symbols 0,1,2,3,4,5,6,7,8, and 9 used to write numbers

place value- the value given to the place a digit has in a number

standard form- a way to write a number showing only its digits

expanded form- a number written as the sum of the values of its digits

word form- a number written in words

period- a group of three digits in a number, seperated by a comma

ordinal number- numbers used to tell the order of people or objects

compare- to decide if one number is greater than or less than another number

order- to arrange numbers from least to greatest or greatest to least

dollar sign- a symbol used to indicate money

decimal point- a dot used to seperate dollars from cents in money, and ones from tenths in a number