Topic 1

Front

Place Value

Back

The position of a digit in a number that tells the value of a digit.

Front

Millions

Back

In a number, the period of three places to the left of the thousands period.

Front

Period

Back

A group of three digits, separated by commas, starting from the right.

Front

Expanded Form

Back

A number written as the sum of the values of its digits.

Front

Greater than (>)

Back

A symbol that points away from a greater number or expression.

Front

Less than (<)

Back

A symbol that points towards a lesser number or expression.

Front

Rounding

Back

Process that determines which multiple of 10, 100, 1,000 and so on, a number is closest to.

Front

Conjecture

Back

A statement that is believed to be true but has not been proven.