Front

What is the result of -2 + 3?

Back

1

Front

What is the sum of a number and its opposite?

Back

Always equal to 0.

Front

What is a proportional relationship?

Back

A relationship where two quantities maintain a constant ratio.

Front

If Andrew reads 3 books in 5 days, how many books will he read in 30 days?

Back

18 books.

Front

If Melanie reads 2 books in 3 days, how many books will she read in 30 days?

Back

20 books.

Front

Who will win the reading contest between Andrew and Melanie?

Back

Melanie will read 2 more books than Andrew.

Front

What is a rational number?

Back

A number that can be expressed as a fraction of two integers.

Front

Is the sum of a positive and a negative rational number always positive?

Back

No, it can be negative or zero.

Front

What is the identity property of addition?

Back

The sum of a number and 0 is the number itself.

Front

What is the reciprocal of a number?

Back

A number that, when multiplied with the original number, equals 1.