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南津关小学六年级(上)数学竞赛姓名 成绩 一 直接写出得数。3= = = += = 6= 0.486= 4.623= 0.750.4= 0.50.5=0.71.1= 0.320.04= ()8= 125= 0.1= 3= 2= 4= 5= 4= 4= 2= 1= 1= 6= 12= 14= = 2= = 6 = = 0= 16 = 6 = = 1 = = = 3 = = 1 = = = = 2510%= 8 = = 10= = 39= = 4= =10= = 7= 3313= 6= 7= 2 =二 计算下面各题,能简算的要简算。0.75101 72( ) 23780.250.25 97 ( ) ()-(+) 1-(+) 3521623624 ( ) 2 2.42.251() (0.75)() () 三、解方程5x10(12x)91621 x = x0.25 x =12.5 x0.8 x =36 36x =15 2 x +0.4 x =7.2 5- x = x( )= 93