2+2=
4
4+8= +9=
21
2+2= -1=
3
9-5=
8-5= -6=
-3
16+23=
39
6+8= +7=
19
47+67=
114
45+60= +74
179
458+864
1,322
657+864= +243=
1,764
5,437+6,789=
12,226
9,875+98,765= +984,875
1,093,515
9,365+7,655= -35,566=
-18,546
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