1. 532 people originally went to see the Harry Potter movie. 2. 67 people left halfway through because they didn't like it. 3. There were 213 kids in the audience. The question asks how many people saw the whole film.

1. Can you remember the four
steps?

2. 1. Understand the problem
2. Plan how to solve the problem
3. Carry out the plan
4. Look Back

3. On the 3rd
of December 532 people
went to see the new Harry Potter
movie. Half way through the movie
67 people left because they didn’t
like it. There were 213 kids in the
audience. How many people saw the
whole film?

4. 1. Understand the problem
On the 3rd of December 532 people
went to see the new Harry Potter
movie. Half way through the movie 67
people left because they didn’t like it.
There were 213 kids in the audience.
How many people saw the whole
film?
What information don’t we need?
What is the question?
What is the important information?

5. 2. Plan how to solve the problem
What strategy will we use?
Solving an equation?
Subtraction -
3. Carry out the plan

6. 532
- 67
2-7 = can’t do
12-7 = 5
5
2 12
20-60 = can’t do
120-60 = 60
4
64
400-0 = 400
1

7. 4. Look Back
Is our Answer reasonable?
YES
Write your answer in a sentence.
465 people saw the
whole Harry Potter
Movie.