addition
what is 25+100
125
20-20
0
100+100
200
1+1
2
10+10
20
what is 30+30
60
900-1
899
200+200
400
2+2
4
20+20
40
39+1
40
20-10
10
300+300
600
3+3
6
30+30
60
29+9
38
670-277
393
700+700
800
5+5
10
50+50
100
190+200
290
734-616
118
900+900
1000
6+6
12
70+70
400