32+=340
145+=372
285+=423
282-40=
365-156=
461-386=
263+142=
83+246=
183+322=
1×6=
7×4=
8×5=
63÷7=
35÷7=
81÷=

-183=220-136
121+63+67+232=
344-293=+32
143+69+153-333=
86++42=153
146+188-77-222=
216+-143=293
500-132-244-64=