464+321=
231+449=
484+711=
787-62=
926-686=
997-129=
24+=849
222+=793
388+=976
73×7=
9×63=
473×4=
384÷8=
760÷5=
954÷6=

-263=870-470
142+168+491+133=
751-207=+331
559+302+234-984=
295++344=927
487+469-295-313=
243+-571=455
999-203-130-482=