1、8.1 0.07:0.7 76:19 48 三、直接写出得数。3 3 3 1 1 1 4 54 4 2 7 7 11 11 11 7 2 1 4 6 1 9 24 6 3 2 3 7 5四、计算下面各题。17 7 12 9 1 46 7 5 7 68 11 10 5 45 8 40.3= ( )%= ( ):20 3.2:7.2 0.09:0.9 102:17 30 2 6 1 1 3 1 16 43 5 5 6 4 16 5 5 5 1 4 4 5 12 27 2 2 3 3 4 717 1 1 20 24 16 2 6 20 85 7 19 25 15 3 575%= =( ):0.7=
2、( )%= ( ):10 0.4:3.6 0.2:0.9 120:60 90 1 6 6 1 7 1 8 3 5 7 2 8 12 7 7 1 7 4 7 4 13 12 2 8 3 6 3 513 1 6 1 24 4 1 16 39 7 10 25 5 5 7225%= =( ):0.6= ( )%= ( ): 0.5:0.8 0.4:1 130:26 36 1 1 4 1 4 17 18 348 2 3 3 3 18 5 5 13 4 1 1 7 1 8 27 6 5 2 2 6 611 1 18 15 21 1 7 618 44 5 16 20 5 6 7165%= =( ):1= ( )%= ( ):28 4:7.2 0.45:0.81 80:56 4 1 1 1 3 1 13 33 4 6 5 4 11 5 5 7 1 2 1 5 12 24 6 4 3 2 6 411 1 10 8 1 44 1 29 44 11 9 15 45 7 3275%= =( ):0.25= ( )%= ( ): 0.6:5.4 0.01:0.07 90:15 50 1 6 2 5 3 12 2 247 7 3 4 2 11 11 11 5 4 6 1 8 12 27 2 3 7 2 7 613 7 4 1 1 1 3 316 39 5 5 20 35 2 4155%= =( ):