15
2019
09

(1)215+370+85(2)(569+468)+(432+101)+30(3)363×56-263×56(4)360÷4÷9(5)(83-47)×25+72×36+36×103(6)56×49+5

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问题描述:

(1)215+370+85 (2)(569+468)+(432+101)+30
(3)363×56-263×56 (4)360÷4÷9
(5)(83-47)×25+72×36+36×103 (6)56×49+56
(7)420÷35

最佳答案:

(1)原式=215+85+370
                =300+370
                =670
(2)原式=(569+101+30)+(432+468)
                =700+900
                =1600
(3)原式=(363-263)×56
                =100×56
                =5600
(4)原式=360÷(4×9)
                =360÷36
                =10
(5)原式=(25+72+103)×36
                =200×36
                =7200
(6)原式=56×(49+1)
                =56×50
                =2800
(7)原式= 420÷7÷5
                =60÷5
                =12

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