addition
15+9=
24
20-20=
0
10x10
100
35
45-45=
0
20+20=
40
200-100=
100
10x2=
20
20+15
35
35-35=
0
1,000+200=
1200
14-7=
7
10X100=
1000
25+15=
40
25-25=
0
800+20
820
18-9
9
100x6
600
35+35=
70
15-25=
10
900,000+6,000
906,000
100+400=
500
100x100=
10,000
45+45=
90
100-90=
10