addition
340+89=
429
39-29=
10
10x23=
230
9/24368695
2707632R7
2x+39=
x=13
2+2=
4
2-3=
-1
4x10=
40
0/10=
0
x/11+37=128
x=1001
9+34=
43
70-29=
41
30x70=
1000
9/81
9
6x-5=43
x=8
9+10=
19
5-3=
2
4x3=
12
1/23456789
23456789
12x+27=171
x=12
400+700=
1100
36-6=
30
7x3=
21
10/63
6R3
4x-71=29
x=25