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脱式计算下面各题.(1)17255÷85×49-949(2)(148+576÷32)×25(3)[225-(49+26)]×78.
题目详情
脱式计算下面各题.
(1)17255÷85×49-949
(2)(148+576÷32)×25
(3)[225-(49+26)]×78.脱式计算下面各题.
(1)17255÷85×49-949
(2)(148+576÷32)×25
(3)[225-(49+26)]×78.
(1)17255÷85×49-949
(2)(148+576÷32)×25
(3)[225-(49+26)]×78.脱式计算下面各题.
(1)17255÷85×49-949
(2)(148+576÷32)×25
(3)[225-(49+26)]×78.
▼优质解答
答案和解析
(1)17255÷85×49-949
=203×49-949
=9947-949
=8998
(2)(148+576÷32)×25
=(148+18)×25
=166×25
=4150
(3)[225-(49+26)]×78
=[225-75]×78
=150×78
=11700
=203×49-949
=9947-949
=8998
(2)(148+576÷32)×25
=(148+18)×25
=166×25
=4150
(3)[225-(49+26)]×78
=[225-75]×78
=150×78
=11700
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