(1+0.34+0.45+0.56)*(0.34+0.45+0.56+0.67)-(1+0.34+0.56+0.45+0
(1+0.34+0.45+0.56)*(0.34+0.45+0.56+0.67)-(1+0.34+0.56+0.45+0
0.12+0.23+0.34+0.45+0.56+0.67+0.78+0.89=?
用特殊方法算(1+0.45+0.56)*(0.45+0.56+0.67)-(1+0.45+0.56+0.67*(0.45
0.12+0.23+0.34+0.45+0.56+0.67+0.78注意是循环小数,循环节在第二位 《2》
0.12+0.23+0.34+0.45+0.56+0.67+0.78注意是循环小数,循环节在第二位
(1+0.12+0.34)*(0.12+0.34+0.56)-(1+0.12+0.34+0.56)*(0.12+0.34
(1+0.23+0.34)×(0.23+0.34+0.56)-(1+0.23+0.34+0.56)×(0.23+0.34
(1+0.12+0.34)x(0.12+0.34+0.56)-(1+0.12+0.34+0.56)x(0.12+0.34
0.12+0.23+0.34+0.45+0.56+0.67+0.78+0.89,这是循环小数,循环最后一位,看得懂的来.
0.12+0.23+0.34+0.45+0.56+0.67+0.78+0.89,这是循环小数,最后一位循环.看得懂的来.
计算:0.12(2)+0.23(3)+0.34(4)+0.45(5)+0.56(6)+0.67(7)+0.78(8)+0
计算:(1+0.23+0.34)*(0.2903+0.34+0.56)-(1+0.23+0.34+0.56)*(0.23