Addition
23+13
36
18-8
10
20
twenty
37
30+7
76-9
67
122+18
140
56-25
31
78
seventy-eight
40+9
49
475-98
377
7,887
137-123
14
138
one hundred-thirty eight
612
600+10+2
826-184
642
46,723+3,421
50,144
6,417-5,304
1,113
869
eight hundred sixty-nine
1,743
1,000+700+40+3
923-567
356
467,824+379,996
847,820
83,618-42,402
41,216
3,327
three thousand three hundred twenty-seven
60,000+0+30+6
8,457-1,946
6,511