Adding 10
23 + 10
32
27 + 5
(use number bonds to solve)
27 + 5
/ \
20 7
7+5 = 12
12+ 20 = 32
13 + 6
13 + 6 =
/ \
10 3
3 + 6 = 9
9 + 10 = 19
16 + 6
16 + 6 =
/ \
10 6
6 + 6 = 12
12 + 10 =22
23 - 10
13
44 + 10
54
17 + 7
17 + 7
/ \
10 7
7+7 = 14
14 + 10 = 24
12 + 7
14 + 7 =
/ \
10 4
4 + 7 = 11
11 + 10 = 21
27 + 4
27 + 4 =
/ \
20 7
7 + 4 = 11
11 + 20 = 31
39 - 10
29
10 + 59
69
19+5
19 + 5 =
/ \
10 9
9 + 5 = 14
14 + 10 = 24
21 + 3
21 + 3
/ \
20 1
1 + 3 = 4
4 + 20 = 24
33 + 6
33 + 6 =
/ \
30 3
3 + 6 = 9
9 + 30 = 39
44 - 10
34
(Let them read and solve without teacher help)
There were 10 duck swimming on the pond. Seven more came. How many ducks are swimming in the pond now.
17 ducks
18 + 3 =
18 + 3 =
/ \
10 8
8 + 3 = 11
11 + 10 = 21
27 + 2
27 + 2
/ \
20 7
7 + 2 = 9
9 + 20 = 29
28 + 7 =
28 + 7 =
/ \
20 8
8 + 7 = 15
15 + 20 = 35
59 - 10
49
110
25 + 5 =
25 + 5 =
/ \
20 5
5+5 = 10
10 + 20 = 30
30 + 5
30 + 5 =
/ \
30 0
0 + 5 = 5
5 + 30 = 35
40 + 6
40 + 6 =
/ \
40 0
0 + 6 = 6
6 + 40 = 46
110 - 10
100