Addition/Soustraction 1-20
13+6=
19
20+10=
30
40+5=
45
61+5=
66
85+5=
90
11-9=
2
35-10=
25
54-8=
46
75-10=
65
95-9=
86
2+14=
16
40-16=
24
59-19=
40
62+18
80
82+6=
88
19-11=
8
21+17=
38
60-11=
49
79-15=
64
100-18=
82
17-8=
9
36-9=
27
41+15=
56
63+11=
74
83+13=
96