Name:
Worksheet
Addition of positive and negative integers
Task A: Representing integers using counters
Add counters to make each of the representations correct:
Integer Representation
(−3)
−
4
−
(−1)
0
−
−
+
−
+
−
+
+
+
+
−
−
+
−
+
−
+
−
+
+
−
+
−
+
+
+
−
Task B: Addition of positive and negative integers
Answer the following questions.
Find the answers in the grid and shade them in to reveal a word.
1)
2)
3)
4)
5)
6) (−4) + 2
7) (−6) + (−2)
8) 7 + (−2)
9) 1 + (−7)
10) 4 + (−11)
(−2) + (−2)
5 + (−3)
(−5) + 4
4 + (−7)
9 + (−1)
(−4) (−7)
(−5)
6
3
5
(−7)
0
(−8) (−6)
2
(−3)
(−9)
7
8
1
(−9)
5
4
0
(−2) (−4)
(−7)
4
(−3)
5
2
7
(−6) (−8)
8
0
6
3
(−7)
(−5)
4
(−9)
7
(−5)
8
(−4) (−7)
(−6)
3
(−3)
(−1) (−3) (−8)
5
(−1)
6
2
0
8
6
(−3)
(−5) (−8)
7
8
4
(−4)
(−9) (−1)
2
(−9)
0
3
8
(−6)
(−1)
5
(−7)
(−3)
1
Addition of positive and negative integers
Worksheet
Task C: Deepening understanding of addition of integers
1)
72 + (−18)
2)
(−7) + 3 + (−9) + 4 + (−11)
3)
(−110) + (−18)
4)
(−14) + 29 + (−3) + 11 + (−13)
5)
125 + (−45)
6)
(−7) + (−12) + (−24)
7)
(−135) + 82
8)
Make up your own addition question using positive and negative integers so that
the sum of all of the answers in this task is 0.
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