# Calculating intervals across zero

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## Lesson details

### Key learning points

1. In this lesson, we will investigate and model problems involving negative numbers.

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### 5 Questions

Q1.
Which of the below gives an answer of -1?
-3-4
-5-6
7-9
Q2.
Which of the calculations below has the smallest answer?
- 8 + 4
-8 - 6
Correct answer: -8 - 8
-8 + 3
Q3.
A school football team scored a total of 3 goals in their recent games but let in 5. What is their goal difference?
-3
-5
1
Q4.
I am in an elevator (lift) and I'm currently on level 6 but I need to get to -2. How many floors away is -2 from me?
-2
6