Modeling and Adding Integers with Counters

Front

What integer represents depositing $50 into a bank account?

Back

$50

Front

What does it mean to decrease speed by 10 mph?

Back

Negative

Front

What counter set models the expression -4 + 5?

Back

(4 red counters and 5 yellow counters)

Front

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

Back

2 + -4 = -2

Front

If you are at sea level, what number are you at on a number line?

Back

Zero

Front

What is the definition of an integer?

Back

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

Front

What does a positive integer represent in real-life situations?

Back

A positive integer represents an increase or a gain, such as money earned.

Front

What does a negative integer represent in real-life situations?

Back

A negative integer represents a decrease or a loss, such as money spent.

Front

How do you model the expression 3 + -2 using counters?

Back

Use 3 yellow counters and 2 red counters.

Front

What is the result of adding -3 and 4?

Back

1