Addition
5 + 5
10
200+1000
1200
9x9
81
123-23
100
72187312-72187311
100+300
400
2000+4000
6000
8x7
56
20x5
100
76267721+1
76267722
300+500
800
10000+10000
20,000
4x4
16
10x5
50
124+2
126
100+500
600
40000+40000
80,000
6x9
54
100x10
1,000
1+1000
1,001
674+199
873
50000+50000
100,000
8x2
16
10x10
100
1x100000000000
100000000000