Mental Math Flashcard

Front

What is the product of -3 and -4?

Back

12

Front

What is 4 + (-5)?

Back

-1

Front

What is the product of -7 and 10?

Back

-70

Front

What is 15 - 10?

Back

5

Front

What is the product of (-2), (-4), and (-3)?

Back

-24

Front

What is the definition of a negative number?

Back

A number that is less than zero.

Front

What is the definition of a positive number?

Back

A number that is greater than zero.

Front

What is the rule for multiplying two negative numbers?

Back

The product of two negative numbers is positive.

Front

What is the rule for multiplying a negative number by a positive number?

Back

The product of a negative number and a positive number is negative.

Front

What is the result of adding a positive number to a negative number?

Back

The result depends on the absolute values; if the positive number is larger, the result is positive, otherwise it's negative.