429+340=
249+462=
403+785=
782-26=
993-653=
958-171=
24+=832
282+=792
383+=929
26×7=
6×155=
826×4=
267÷3=
416÷8=
873÷9=

-268=836-451
137+116+464+171=
738-262=+323
510+322+230-970=
216++374=971
427+442-227-334=
212+-535=487
999-245-106-466=