+10
36+10=?
46
78-10?
68
How many tens are in the number 93?
9
23+10=
33
10+5=
15
59+10=?
69
93-10=?
83
How many tens are in the number 65?
6
40+10=
50
10+4=
77+10=?
87
35
How many tens are in the number 22?
2
33+10=
43
10+4+10=
24
27+10=?
37
25-10=?
15
How many tens are in the number 79?
7
56+10=
66
10+10+10+10=
40
57+10=?
67
89
How many ones are in the number 89?
9
78+10=
88
10+5+5+10+5+5+10=
50