In this activity, we will be adding and subtracting positive and negative numbers.
Use the number ladder to help you to answer the questions.
Remember, for a positive number, move up the ladder.
For a negative number, move down the ladder.
Always begin at 0.
3 - 5
Start at 0, move up 3 spaces, then down 5 spaces.
The answer is -2
3 - 5 = -2
-4 - 3
Start at 0, move down 4 spaces, then down another 3 spaces.
The answer is -7
-4 -3 = 7
Let's have a go at some questions now.