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77+2.7+2.8+25的简便
77+2.7+2.8+25的简便
答:
77+2.7+2.8+25 =(77+25)+(2.7+2.8)
=102+5.5 =107.5
77+2.7+2.8+25的简便
算法
答:
77+2.7 +2.8 +25
=77+25 +(2.7+2.8)=(77+23+2)+4.5 =102+4.5 =106.5
77+2.7+2.8+25的简便
计算?
答:
简便
计算过程如下,将
2.7
转化为2.5+0.2,将
77
转化为75+2,所以原式=75+2+2.5+0.2
+2.8+25
=(75+25)+(2+2.5)+(0.2+2.8)=100+4.5+3=107.5
77+2.7+2.8+25的简便
方法怎么算?
答:
77+2.7+2.8+25 =75
+2+2.7+2.3+0.5+25 =75+25+2.7+2.3+2+0.5 =100+5+2+0.5 =107.5
77+2.7+2.8+25用
以
简便
运算
答:
77+2.7+2.8+25的简便算法:
77+2.7+2.8+25 =77+25+(2.7+2.8)=(77+23+2)+4.5 =102+4.5 =106.5
简便计算的定律:(1)加法交换律:用于调换各个数的位置a+b=b+a;(2)加法结合律:(a+b)+c=a+(b+c)。
772.72.8
25的简便
计算
答:
简便
计算
77+2.7+2.8+25
=(77+25)+(2.7+2.8)=102+5.5 =107.5
用简便
运算
77+2.7+2.8+25
答:
解:
77+2.7+2.8+25
=(77+25)+(2.7+2.8)=(75+25+2)+5.5 =100+2+5.5 =107.5
77+2.7+2.8+25的简便
方法怎么算?
答:
77+2.7+2.8+25的简便
77+2.7+2.8+25 =(77+25)+(2.7+2.8) =102+5.5 =107.5 77+2.7+2.8+25的简便计算 77+2.7+2.8+25 =77+5.5+23+2 =(77+23)+(5.5+2) =100+7.5 =107.5 77+2.7+2.8+25用以简便运算 77+2.7+2.8+25用以简便运算 ...
77
加二点七加二点八加
25的简便
运算
答:
107.5 解析:
77+2.7+2.8+25
=(75+25)+(2+2.7+2.8)=100+(2+5.5)=100+7.5 =107.5
77+2.7+2.8+25的简便
计算
答:
77+
23+2
+2.7+2.8
100+2+5.5 107.5
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涓嬩竴椤
灏鹃〉
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