Mathematics Key Concepts

Front

Place Value

Back

The value of where a digit is in the number (e.g., ones, tens, hundreds).

Front

Decimal

Back

A number with a decimal point that represents parts of a whole.

Front

Expanded Form

Back

A way to write numbers by showing the value of each digit (e.g., 523 = 500 + 20 + 3).

Front

Standard Form

Back

The usual way to write numbers (e.g., 523).

Front

Numerator

Back

The top number in a fraction, representing how many parts are being considered.

Front

Denominator

Back

The bottom number in a fraction, representing the total number of equal parts.

Front

Equivalent Fractions

Back

Fractions that have the same value (e.g., 1/2 = 2/4).

Front

Improper Fraction

Back

A fraction where the numerator is greater than or equal to the denominator (e.g., 9/4).

Front

Mixed Number

Back

A number made up of a whole number and a fraction (e.g., 2 1/3).

Front

Sum

Back

The result of addition.