Make the number
12
one ten, two ones
4-2=
2
3+3=
6
23
Twenty three
10
one ten, zero ones
38
3 tens, 8 ones
8-3=
5
5+2=
7
48
Forty eight
15
one ten, five ones
51
5 tens, 1 one
7-4=
3
7+4=
11
63
sixty three
52
five tens, two ones
76
seven tens, six ones
18-8=
10
13+4=
17
11
eleven
89
eight tens, nine ones
99
21-5=
16
20+3=
23
15
fifteen
92
nine tens, two ones