hard addition
222+333=
555
50+28=
78
186-96=
90
213-132=
81
123+223=
346
123+345=
468
45+23=
52
1000-200=
800
310-115=
195
235-213=
22
565+678=
2313
56+34=
90
234-154=
80
342-165=
223
324+234=
114
435+789=
1224
45+60=
105
364-123=
241
321-213=
112
321-123=
202
567+789=
1356
65+43=
108
1234-334=
900
432-321=
111
3+4+2+2+3+3+1 divided by three=
6