Number Line Sums
Find the sum using a number line.
7 + –5
So, 7 + –5 = 2.
Find the sum using a number line.
1
2
3
4
5
6
7
8
9
••
••
••
–3 + 7
2 + –9
Move to the right if you are
adding a positive number. Move
to the left if you are adding a
negative number.
5 + –6
–2 + 8
–8 + 4
0 + –6
–4 + 6
9 + –2
–7 + 5
–8 + 3
–5 + 6
8 + –3
–4
1
5
7
2
–5
–2
–1
–7
–6
4
6
Objective: Find the sum of positive and negative integers
using a number line.
919047R_VT_G7 Bk 4.indd 5
5
10/1/09 4:59:08 PM