1、6.230.6 11 8 3 1 1 1.5 64 ( ) 6 5 4 4 4 6 8 1 1 ( ) 1698 7 7 6 8 2947897 67.60.99 7 1 6 1 1 6 8 2 7 7 2 2 1 1 4 7 4 27 27 3 7 2 5 11 11 32 1 6 4 1 ( ) 30 17 7 7 5 3 57.235956.9 54.328176 四、解方程。 11 x 0.7 6 16x 48 6 x 17 1 20% x x 16 3 8 2 1 1 x : 7 = : 80 : x = 0.4 : 90 3 8 20 8 = 0.6 : x = 0.15 : 5
2、1.2 x 7 1 : 90 = x : 8 : x = 0.6 : 15 8 1 8 9 4 = = 2 x x 3 1 1 1 4 = : 9 = 6 4 2.2 x 1 1 1 : x 0.8 : 2 2 9 8 9738= 900140= 1450= 40050= 832.7= 217= 1.80.6= 820%= 7 1 1 1 6 1 9 = 7 = 6 6 3 3 7 3 8 6.851.13= 52.66= 1252= 707= 二、根据44602640,直接写出下面各题的得数。44060 0.44600 4400600 26406 26406000 2640000.6 803
3、399 602296 6299 6317 5585.22.2 5470.35470.3 15 8 9 1 1 5.5 224 ( ) 8 5 8 4 7 6 9 1 1 ( ) 45199 7 8 4 6 932.6130 9.476 7 1 1 1 5 9 8 2 2 2 6 1 9 1 1 5 2 5 5 2 10 3 5 7 7 20 1 5 9 1 ( ) 48 17 6 6 8 3 0.181817.3 89.322121 5 x 0.6 7 20x 94 2 x 13 5 80% x x 42 8 7 6 9 = : 2 : x = 9 : 0.7 5 8 8 4 = 0.9 :
4、x = 0.225 : 6 3.2 x 2 10 : 0.7 : x = 3 : 120 3 1 7 3 6 2 x x 7 6 1 0.8 3 2 = 5 6 1.4 x x 2 : x = 1 : 3 2 9 9 9431= 640300= 220= 10010= 100.2= 220= 0.90.1= 5425%= 5 1 1 5 1 1 1 = 9 = 2 2 5 6 3 5 7 5.581.84= 6.851.11= 2564= 1.4二、根据81191539,直接写出下面各题的得数。8119 8.10.19 810019 8100190 15.390.19 1539001900 1
5、539019 153901900 59799 904299 94102 44991 9554.95.4 61800.0761800.07 9 4 5 1 1 1.5 108 8 5 6 3 6 6 5 1 1 ( ) 82101 5 4 6 6 629.76.3 6747.9 9 1 1 1 4 8 8 3 2 8 5 1 5 3 1 13 4 48 48 4 6 4 5 17 17 17 1 3 8 1 42 11 4 4 7 2 37384231.9 47.321240 x 0.3 9 1x 112 3 x 15 1 20% x x 64 5 8 8 9 : 3 6 18 4 = 3 :
6、x = 0.75 : 7 1.6 x 20 : 5 = x : 90 : x = 60 :2 5 7 6 7 x x 5 1 5 1.6 6 4 = 2 6 1.2 x x 60 : x = 30 :2 6 4 8639= 85030= 740= 20040= 70.8= 149= 4.20.6= 405%= 8 1 3 1 1 1 2 = 6 = = 7 7 7 7 8 3 3 6.552.49= 6.412.61= 1.254= 122= 二、根据28922576,直接写出下面各题的得数。28920 2.80.92 280920 25.7692 257.692 257600.92 257.
7、69.2 797202 902402 54401 30447 9145.54.1 3640236402 15 8 3 1 1 128 ( ) 7 5 4 8 4 6 4 1 1 ( ) 4799 5 3 4 8 16023.68 80044 7 4 1 5 1 7 8 5 3 6 6 1 9 2 1 10 3 19 19 4 10 3 5 13 13 10 5 1 6 1 20 7 6 6 5 4 105.696678 87.746191 8 0.3 2 0.1x 20 7 x 5 5 70% x x 24 9 4 6 8 = : 30 : x = 0.3 :8 7 = 5 : x = 1.25 : 4 5 : 6 = x : 0.3 : x = 6 : 1.2 5 4 2 9 7 7 x x 8 3 1 2 3 2 2 1 x x 7 : x = 3.5 :4 8 2 7914= 730330= 1830= 280843= 634= 0.80.1= 609 1 2 2 1 3 5 = 6 = 5 5 3 3 3 2 6 5.342.2= 5.131.27= 2.54= 204= 二、根据50221100,直接写出下面各题的得数。
copyright@ 2008-2022 冰豆网网站版权所有
经营许可证编号:鄂ICP备2022015515号-1