1、10430,直接写出下面各题的得数。431 430010 43100 4310000 431 431000 43010 431 三、估算。701397 796296 71197 11744 四、计算。6254.43.6 26.20.526.20.5 8 9 6 1 1 4.5 280 ( ) 7 5 7 5 8 6 7 1 1 ( ) 51702 7 6 6 6 786173.2 20.60.6 4 3 9 1 2 5 5 4 8 2 3 1 1 3 1 6 1 48 48 2 10 4 4 7 7 24 1 6 4 1 ( ) 60 19 7 7 5 4 980497.45 73.92713
2、5 6128= 800140= 1150= 4020= 492.2= 521= 1.20.4= 5670%= 5 2 1 7 9 3 1 = 5 = 3 3 2 6 8 4 3 5.390.11= 5.650.97= 12.532= 2.22= 二、根据90524680,直接写出下面各题的得数。0.90.52 90520 9000520 468000.52 468520 468005200 4680.52 498101 801196 72101 12334 5494.55.2 94.30.894.30.8 17 2 8 1 1 6.5 336 ( ) 8 5 7 6 8 4 4 1 1 ( )
3、 76602 3 3 2 10 1705820 1057.4 7 4 1 1 1 6 5 6 7 6 1 1 1 2 13 6 16 16 3 9 2 3 19 19 3 3 1 8 1 ( ) 14 2 4 4 7 2 173434298 58.236277 9932= 710400= 2040= 52040= 281.6= 848= 6.30.7= 2460%= 3 1 2 3 6 3 2 = 7 = 2 2 3 2 7 2 3 6.422.14= 6.381.35= 5016= 366= 二、根据18611098,直接写出下面各题的得数。1.8610 1800.61 180610 180
4、061000 10.98610 10.986.1 109.8610 1098610 699201 601197 8296 8728 7204.12.1 1878018780 9 4 9 1 1 5.5 320 4 5 8 8 5 4 9 1 1 ( ) 16599 3 8 2 10 5991.59 7.5688 9 1 3 4 1 3 8 4 4 5 4 2 1 1 1 11 8 14 14 3 6 4 5 19 19 8 1 1 9 1 64 5 2 2 8 4 766.3977240 7247200 6936= 750230= 1050= 70050= 680.3= 924= 0.60.1= 2050%= 9 7 1 4 6 1 2 = 4 = 8 8 2 5 7 4 3 6.352.12= 5.170.86= 2.54= 4004=