Adding

1. - - - + + +
- - - + + +

2. “When we add two
positive numbers
together, we just add
them together! The
answer goes up on the
number line!”
2+2=4

3. “When we add two negative
numbers together, we just
add the two numbers
together and put the
negative sign in front of the
answer! The answer goes
down on the number line!”
-3 + -3 = -6

4. “When we have the
same amount of
positive and negative
numbers, they make
zero!” =0
=0
=0
=0

5. “If the starting number is a
positive, and a lower
negative number is added,
then the answer will always
be a positive number!”
e.g. 5 + -4 = 1 There’s 1 positive
leftover!
Zeroes!

6. “When we start with a
negative number, and
add a higher positive
number, our answer is
going to be a positive!”
-2 + 3 = 1

7. “If the starting number is a
positive, and a higher
negative number is added,
then the answer will always
be a negative number!”
e.g. 3 + -4 = -1 There’s 1 negative
leftover!
Zeroes!

8. Starting number Answer number
e.g. 3 + -2 = 1
Middle number
When checking our answers, you can add the
starting number with the answer, and it should
equal the number between them.
Adding a negative
number is the same as
taking away.
e.g. 3 + -2 = 1
becomes
3–2=1