213+345=?,319+491=?,687+752=?
543-48=?,858-334=?,950-217=?
60+?=642,407+?=751,253+?=947
46*7=?,6*116=?,807*4=?
213/3=?,600/8=?,792/9=?
---
?-290=806-311,125+212+352+211=?
752-388=?+206,458+381+245-960=?
278+?+238=954,568+236-359-314=?
429+?-657=477,999-124-390-404=?
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