Doubles
Which double = 4?
2
Which number + itself = 10?
5
67 + 1 = ?
68
4 + 10 = ?
14
2 + 3 = ?
5
Which double = 20?
10
9 + ? = 10
1
45 - 1 = ?
44
23 - 10 = ?
13
Double 6 + 1 = ?
13
8 + 8 = ?
16
6 + ? = 10
4
? + 1 = 16
15
? + 10 = 58
48
52 + 9 = ?
61
Double 7's = ?
14
10 - 8 = ?
2
? - 1 = 33
34
? - 10 = 87
97
19 + 9 = ?
28
Which double = 18 (wheeler)?
9
10 - 3 = ?
7
? + 1 = 129
128
? + 10 = 103
93
? + 9 = 85
76