EDM Unit 1 Vocabulary

Front

Close to exact but not precise

Back

Approximate

Front

Making a number simpler but keeping its value close

Back

Rounding

Front

When a number is written as the sum of its values

Back

Expanded Form

Front

Any of the symbols 0,1,2,3,4,5,6,7,8,9

Back

Digit

Front

A system that gives a digit a value according to its position

Back

Place Value

Front

The most common way of representing a number

Back

Standard Form or Standard Notation

Front

The seventh place value to the left

Back

millions

Front

The process of rounding a number to get an approximate answer

Back

estimation

Front

A way to represent numbers with symbols, pictures or manipulatives

Back

number model

Front

A variable that represents an unknown value

Back

unknown quantity