Question

In this problem,Write a subtraction problem to represent the situation.Then write the subtraction problem as an addition problem.Model the addition problem on a number line, and use the number line to answer the question

Adam buys 9 gift cards and give 6 away.How many does he have left?

Answer 1

To represent the situation, the subtraction problem is 9 - 6. This can be modeled as an addition problem, 6 + ? = 9. Using a number line shows that Adam has 3 gift cards left.

Step-by-step explanation:

The question is asking for a subtraction problem to be written to represent a situation and then for that problem to be rewritten as an addition problem. Finally, the addition problem should be modeled on a number line.

The subtraction problem based on the given situation is: 9 - 6 = ?

To write this subtraction problem as an addition problem, we find the number that when added to 6 will equal 9. This is called the 'additive inverse.' The addition problem is: 6 + ? = 9

Here's how you model the addition problem on a number line:

1. Start at 6 on the number line.
2. Move 3 units to the right to get to 9.

By using the number line, we can see that Adam has 3 gift cards left after giving 6 away.