Adding Positive and Negative Numbers

Front

What is the result of adding two negative numbers, such as -4 + -7?

Back

The result is negative. Adding two negative numbers always yields a negative sum.

Front

What is the sum of 6 and 12?

Back

The sum of 6 and 12 is 18.

Front

How do you calculate the sum of a positive number and a negative number, such as 50 + (-8)?

Back

To calculate the sum, subtract the absolute value of the negative number from the positive number: 50 - 8 = 42.

Front

If the temperature is 4⁰C and it drops by 10⁰C, what is the final temperature?

Back

The final temperature is -6⁰C. You subtract 10 from 4, resulting in -6.

Front

What is the result of adding a positive number and a negative number, such as 8 + (-9)?

Back

The result is negative. In this case, 8 - 9 = -1.

Front

What is the definition of a positive number?

Back

A positive number is any number greater than zero.

Front

What is the definition of a negative number?

Back

A negative number is any number less than zero.

Front

What happens when you add zero to a number?

Back

Adding zero to a number does not change the value of that number.

Front

What is the rule for adding two positive numbers?

Back

The sum of two positive numbers is always positive.

Front

What is the rule for adding a positive number and a negative number?

Back

The result depends on the absolute values of the numbers; if the positive number is larger, the result is positive, and if the negative number is larger, the result is negative.