27.8乘0.25+71.2乘5.64+5.64

mm蓝玫瑰2022-10-04 11:39:544条回答

27.8乘0.25+71.2乘5.64+5.64
简便计算

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共4条回复
gdfskn4 共回答了16个问题 | 采纳率93.8%
27.8*0.25+71.2*5.64+5.64
=27.8*0.25+5.64*(71.2+1)
=27.8*0.25+72.2*5.64
=27.8*0.25+72.2*(0.25+5.39)
=27.8*0.25+72.2*0.25+72.2*5.39
=0.25*100+72.2*5.39
=25+389.158
=414.158
1年前
yk1028 共回答了6个问题 | 采纳率
27.8乘0.25=6.95
71.2乘5.64=401.568
即27.8乘0.25+71.2乘5.64+5.64=6.95+401.568+5.64=414.158
1年前
穆泽岚 共回答了219个问题 | 采纳率
27.8乘0.25+71.2乘5.64+5.64
=27.8*0.25+71.2*5.64+5.64
=27.8*0.25+5.64*(71.2+1)
=27.8*0.25+5.64*72.2
=56.4*0.125+5.64*72.2
=5.64*1.25+5.64*72.2
=5.64*(1.25+72.2)
=5.64*73.45
=414.258
1年前
英俊是种罪过 共回答了1个问题 | 采纳率
不知道这是不是最简单的.试下
27.8*0.25+71.2*5.64+5.64
=27.8*0.25+(71.2*5.64+1*5.64)
=27.8*0.25+72.2*5.64
=...
1年前

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tymyd777 共回答了16个问题 | 采纳率93.8%
这一组题,只能直接计算等结果,要用递等式方法做的话,每道题里应该有三个数,两次运算才能用递等式.要用递等式的话,只能写成下面样子.不知对不.
73.06-3.96
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=38.92
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=200.8
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54乘27.8+27.8乘45+27.8等于
一边形1年前4
paulfaye 共回答了15个问题 | 采纳率100%
54乘27.8+27.8乘45+27.8
=(54+45+1)*27.8
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=278