addtion
10+1=
11
1-2=
1
what letter is this...L
the letter is L
10
10
1x1=
1
20+1
21
5-2
3
what letter is this...x
x
30
30
5x2=
10
9+4
13
4-2=
2
what letter is this...w
w
50
50
10x5=
50
10+5
15
7-4=
3
what letter is this...r
r
28
28
6x4=
24
20+10=
30
10-30
20
what letter is this...q
q
80
80
12x5=
60