Adding Integers

Front

What is the sum of -9 and -5?

Back

-14

Front

What is the result of -8 + 20?

Back

12

Front

What is 2 + (-21)?

Back

-19

Front

Which addition equation matches the problem modeled below: -2 + -4?

Back

2 + -4 = -2

Front

Which equation represents the 2-color counters shown in the image: -4 + 5?

Back

4 + (-5) = -1

Front

What is the definition of an integer?

Back

An integer is a whole number that can be positive, negative, or zero.

Front

What is the rule for adding two negative integers?

Back

When you add two negative integers, the result is also a negative integer.

Front

What happens when you add a positive integer to a negative integer?

Back

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

Front

What is the sum of 4 and -5?

Back

-1

Front

What is the result of adding two positive integers?

Back

The result is always a positive integer.