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Math Vocabulary

3rd Grade Math Vocabulary

TermDefinition
Place Value The position of a digit in a number (e.g., ones, tens, hundreds, thousands, ten thousands, hundred thousands).
Standard Form A way to write a number using digits (e.g., 4,321).
Expanded Form Writing a number to show the value of each individual digit (e.g., 4,000 + 300 + 20 + 1).
Word Form Writing a number using words instead of digits (e.g., four thousand, three hundred twenty-one).
Equality A math sentence that compares two equal numbers using symbols like 134 = 67 + 67
Inequality A math sentence that compares two unequal numbers or equations like 134 < 453 (less than) or 756 > 21 (greater than).
Round To find a nearby number that is a multiple of ten, hundred, etc., making it simpler to work with.
Estimate To give a close, rounded number or calculation rather than an exact answer.
Sum The total result when two or more numbers are added together.
Difference The result when one number is subtracted from another.
Product The result when two or more numbers are multiplied together.
Quotient The result when one number is divided by another.
Commutative Property The rule stating that changing the order of the factors does not change the product (e.g., 3 x 4 is the same as 4 x 3).
Created by: albrooks
 

 



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