Addition with regrouping 1
239+436
675
253-76
177
69+945
1,014
713-164
697
66+16
82
447+327
774
324-65
259
384+860
1,244
802-146
656
84+18
102
312+349
661
378-99
279
934+986
1,920
836-368
468
3,984-662
3,322
724+137
861
361-73
288
278+153
431
564-498
66
527+65+336
928
546+436
982
302-56
246
573+264
837
273-185
88
342+128+86
556