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简便计算1.25*0.25*0.32(8+0.8+008)*1.254.83÷5+2.17÷539÷(1.3*5)都怎么简便,不能简便的帮我算下,急
题目详情
简便计算
1.25*0.25*0.32 (8+0.8+008)*1.25 4.83÷5+2.17÷5
39÷(1.3*5)都怎么简便,不能简便的帮我算下,
急
1.25*0.25*0.32 (8+0.8+008)*1.25 4.83÷5+2.17÷5
39÷(1.3*5)都怎么简便,不能简便的帮我算下,
急
▼优质解答
答案和解析
1.25*0.25*0.32
=(1.25*0.8)*(0.25*0.4)
=1*0.1
=0.1
(8+0.8+0.08)*1.25
=8*1.25+0.8*1.25+0.08*1.25
=10+1+0.1
=11.1
4.83÷5+2.17÷5
=(4.83+2.17)÷5
=7÷5
=1.4
39÷(1.3*5)
=1.3*30÷(1.3*5)
=(1.3÷1.3)*(30÷5)
=1*6
=6
=(1.25*0.8)*(0.25*0.4)
=1*0.1
=0.1
(8+0.8+0.08)*1.25
=8*1.25+0.8*1.25+0.08*1.25
=10+1+0.1
=11.1
4.83÷5+2.17÷5
=(4.83+2.17)÷5
=7÷5
=1.4
39÷(1.3*5)
=1.3*30÷(1.3*5)
=(1.3÷1.3)*(30÷5)
=1*6
=6
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