Adding with Regrouping
235+598=
833
874-267=
607
1,587 + 1, 587 =
3, 174
509-176 =
333
5, 874 + 7, 257 =
13, 131
2,541-1,963=
578
29, 257 + 87, 888 =
117, 145
75, 058-52, 321=
22, 737
745, 659 + 127, 398 =
873, 057
589, 006- 223, 542=
365, 464