246+507=
254+585=
416+621=
712-32=
861-206=
860-373=
90+=891
202+=859
318+=907
36×4=
62×7=
83×3=
132÷6=
135÷5=
480÷4=

-220=759-435
190+288+333+111=
809-268=+336
346+215+264-651=
217++346=924
480+259-137-350=
253+-408=247
999-321-117-380=