1、二、根据49773773,直接写出下面各题的得数。490.77 0.497.7 0.497700 497700 377.3770 377.3770 37730.77 37730三、估算。797403 898199 88404 36462 四、计算。44602.14.8 8.590.088.590.08 7 4 6 1 1 6.5 126 ( ) 6 5 7 6 3 9 4 1 1 ( ) 95402 8 3 4 6 80835.33 8370.18 5 1 9 1 1 5 6 5 8 7 5 1 8 1 1 2 3 47 47 2 9 4 5 5 5 10 1 1 9 1 ( ) 32 7 2
2、 2 8 2 3.857752 84.227140 9654= 890340= 1450= 72060= 711.8= 525= 6.30.9= 5890%= 11 1 1 3 7 1 3 = 2 = = 5 5 3 2 8 6 2 5.612.25= 6.491.73= 1252= 124= 442156,直接写出下面各题的得数。0.490.44 494.4 0.4944 4904.4 2156000.44 215.64.4 21.5690397 50199 94201 45251 52.35.64.7 4.76904.7690 11 6 9 1 1 0.5 448 ( ) 5 5 8 8
3、7 4 6 1 1 ( ) 99898 3 5 4 6 70.32434 5.526.8 6 1 3 2 2 6 5 2 4 3 3 1 1 1 1 7 6 50 50 2 9 2 4 13 13 7 7 1 8 3 ( ) 28 5 8 8 7 4 61236521 57.149130 9514= 990240= 230= 27030= 662.5= 324= 2.40.6= 5410%= 3 1 1 4 6 5 1 = 8 = 2 2 2 3 5 4 5 6.412.78= 5.342.55= 12.532= 55= 二、根据7211792,直接写出下面各题的得数。0.7211 72001
4、.1 7.20.011 79.211 79201.1 79201100 7.920.11 799103 703201 83104 48381 67.51.31.9 7270.77270.7 5 1 5 1 1 0.5 120 4 5 6 4 5 ( ) 18101 8 3 2 8 28.4640.5 6.786.6 7 4 6 6 1 2 6 5 5 7 6 2 1 1 1 6 11 33 33 3 7 4 4 17 17 15 1 3 7 1 48 11 4 4 8 2 1014399940 37.531251 9418= 950290= 1630= 180612= 613= 0.40.4= 285 1 1 5 4 1 3 = 4 = 4 4 3 6 3 3 4 6.41.77= 6.731.25= 501