Ten More Ten Less
_ 37 _
27 and 47
60+20=
80
49+6=
55
62+20=
82
43,53,63, _ , _
73 and 83
_ 42 _
32 and 52
40+30=
70
32+8=
40
47+30=
77
34,35,36, _ , _
37 and 38
_ 66 _
56 and 76
10+40=
50
67+5=
72
38+50=
88
46, 56, 66, _ , _
76,86
_ 83 _
73 and 93
90-70=
20
46+6=
52
42+50=
92
21, 31, 41, _ , _
51 and 61
_ 55 _
45 and 65
40-10=
30
89+7=
96
71+20=
91
67, 68, 69, 70, _ , _
71 and 72