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1、精选优质文档-倾情为你奉上小学数学六年级下册口算训练一、口算。3.142= 3.143= 3.144= 3.145= 3.146= 3.147= 3.148= 3.149=3.1410= 3.1420 = 3.141.5 = 3.14100 = 3.14500 = 3.140.6 = 3.140.5 = 3.1480 =92 = 102 = 112 = 122 = 132 = 142 = 152 = 162 = 172 = 182 = 202 = 252 = 302 = 502 = 1002=121.5 = 123= 124= 120.5= 125=126= 127= 128= 129= 13
2、3=134= 135= 136= 137= 141.5 = 143= 144= 145= 140.5= 146= 147= 153= 154= 155= 156= 157= 160.5= 161.5 162= 163=164= 165= 172= 173= 174=175= 182= 183= 184= 185=192= 193= 194= 195= 205=220.5= 221.5 = 233= 234= 243=244= 245 = 253= 254= 262=263= 272= 273= 282= 283=5.117= 2.54= 1.258= 0.173= 0.233= 1.50.6=
3、 1.233= 1.27= 0.5100= 8.81.1= 6.92.3= 1.39=8.517= 0.10.1= 2.36-0.99= 3.40.4=0.57+1.53= 6550= 0.725= 1.14+0.98=0.910.13= 7.062= 0.160.8= 8.72.9=71.4= 50.2= 0.844= 7.9-0.6=二、将下列分数先化成小数,再化成百分数。( )=( ) )=( )( )=( ) =( )=( )( )=( ) ( )=( )( )=( ) ( )=( )( )=( ) ( )=( )( )=( ) ( )=( )三、巧算。12-6.2-3.8= 8.9+3.8+1.1= 0.253+0.25= 12.59-12.5= 1.24+0.366= 0.250.74=253.90.4= 1.257+1.25= 50002.25%80%=3.141.250.24= 12516= 0.87524 =专心-专注-专业