Birds come and go
14
19
18
17
16
15
11
0 + 20
1
+
19
2 + 18
3 + 17
4 + 16
5 + 15
6 + 14
7 + 13
8 + 12
9 + 11
10 + 10
11 + 9
12 + 8
13 + 7
14 + 6
15 + 5
16 + 4
17 + 3
Z z z
Z z z
Z z z
Z z z
Z z z
Z z z
Z z z
Z z z
Z z z
Z z z
Z z z
Z z z
Z z z
Z z z
Z z z
Z z z
Z z z
Z z z
Z z z
Z z z
18 + 2
19 + 1
Subtraction Facts
Harold goes fishing!
6 - =
6 - =
6 - =
6 - =
6 - =
6 - =
6 – 1 = 5�6 - 2 = 4�6 – 3 = 3�6 – 4 = 2�6 – 5 = 1�6 – 6 = 0
6 - =
How many fish are still in Harold’s boat?
6 - 2 = 4
How many fish are still in Harold’s boat?
6 - =
6 - 3 = 3
How many fish are still in Harold’s boat?
6 - =
6 - 5 = 1
Harold frees the fish!
6 - 0 = 6
6 = 0 + 6
6 - 5 = 1
6 = 5 + 1
6 - 4 = 2
6 = +
6 - 3 = 3
6 = +
6 - 2 = 4
6 = +
6 - 1 = 5
6 = +
6 – 1 = 5�6 - 2 = 4�6 – 3 = 3�6 – 4 = 2�6 – 5 = 1�6 – 6 = 0
6 = 1 + 5�6 = 2 + 4�6 = 3 + 3�6 = 4 + 2�6 = 5 + 1�6 = 6 + 0