Adding Integers Using Counters

Front

What is the result of -2 + 4?

Back

2

Front

What is the result of 8 + (-2)?

Back

6

Front

What do you get when you add opposites?

Back

Zero

Front

Which addition equation matches the problem modeled with 2 yellow counters and 4 red counters?

Back

2 + -4 = -2

Front

What is the result for the counter model with 2 red counters and 5 red counters?

Back

-7

Front

What is an integer?

Back

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

Front

What does it mean to add a positive integer?

Back

Adding a positive integer means moving to the right on the number line.

Front

What does it mean to add a negative integer?

Back

Adding a negative integer means moving to the left on the number line.

Front

What is the absolute value of a number?

Back

The absolute value of a number is its distance from zero on the number line, regardless of direction.

Front

How do you represent -3 using counters?

Back

Using 3 red counters.