x
8+9=
17
21-1=
20
490+349=
839
530-32=
498
902+323=
1225
12+43=
55
192-92+
100
1+1=
2
345-132=
222
33x10=
330
122+211=
333
300-231=
69
32+62=
94
22-6=
16
204-164=
40
121+812=
933
999-122=
877
154+321=
475
3000+3191=
6191
529-229
300
1927+9012=
10939
8123-2223=
5900
1721+2172=
3893
3721+6000=
9721
3000x10=
30000