1、2 8 4 3 8 12 5 5 1 1 1 6 6 1 8 27 2 8 2 5 7 3四、计算下面各题。11 1 18 1 11 1 1 7 12 44 5 11 10 25 2 8235%= =( ):0.1= ( )%= ( ):15 1.8:4.8 0.01:0.07 105:42 21 7 1 9 1 1 1 2 38 2 8 6 8 19 7 7 5 1 1 1 8 1 2 32 4 4 4 3 7 311 7 18 1 19 1 1 1 6 44 11 20 20 5 7 565%= =( ):0.65= ( )%= ( ):25 0.5:3.5 0.18:0.6 78:13
2、30 1 6 1 1 1 1 20 42 7 4 2 7 14 5 5 3 1 6 1 6 1 2 27 2 6 5 5 5 219 1 12 1 1 26 5 112 19 11 4 10 25 4 615%= =( ):0.2= ( )%= ( ):24 4.2 0.05:0.07 76:19 1 1 1 1 8 14 4 283 8 7 3 7 15 5 5 1 5 5 1 6 1 6 16 2 4 4 4 5 611 1 1 1 19 1 6 18 22 11 9 20 45 5 5125%= =( ):0.3= ( )%= ( ):9 0.8:4.8 0.3:0.54 108:27
3、63 1 5 1 1 3 21 1 637 4 5 7 4 20 7 7 6 1 1 3 2 1 8 24 5 6 8 2 3 217 7 10 3 1 34 1 320 17 11 2 20 35 8 2135%= =( ):0.95= ( )%= ( ):3.6 0.18:0.72 145:87 48 1 6 1 7 1 18 5 544 5 7 8 3 19 5 5 5 6 7 1 1 14 32 2 5 8 8 2 619 1 6 12 14 1 5 18 76 7 11 15 5 4 2145%= =( ):16 0.9:2.7 0.03:0.27 174:29 32 2 1 1 1
4、 1 1 12 3 6 5 3 3 15 5 5 11 1 5 1 9 12 24 6 2 6 6 8 319 1 16 15 1 34 4 14 76 7 16 25 35 5 6175%= =( ):0.7= ( )%= ( ): 1.2:3.2 0.06:0.36 60:24 72 1 2 7 1 5 1 9 3 3 8 7 6 13 5 5 6 7 1 1 5 13 32 5 8 3 7 6 213 7 12 15 1 46 1 16 13 11 16 10 45 5 3265%= =( ):6 4:7.2 0.15:0.3 85:17 20 1 1 5 1 1 1 13 4 3 4
5、8 5 15 11 11 5 7 8 6 5 1 6 18 2 8 7 7 4 611 1 18 1 21 1 3 114 44 5 9 20 45 4 55%= =( ):0.25= ( )%= ( ):28 3.5:5.6 0.32:0.56 115:69 42 5 6 2 1 6 17 6 346 7 3 4 7 18 7 7 2 1 8 1 4 1 6 16 3 4 7 7 3 213 7 18 1 24 44 1 116 39 11 4 25 45 7 8 1.5:3 0.01:0.09 104:78 40 1 7 1 1 1 1 19 2 8 3 4 6 17 11 11 1 5 1 4 5 1 2 18 2 4 7 3 6 711 7 16 1 11 1 1 59 44 5 8 10 5 2 455%= =( ):0.5= ( )%= ( ):2 0.3:2.7 0.04:0.09 156:52 14 1 1 1 1 1 15 1 758 2 2 4 4 16 5 5 3 7 6 3 7 14 12 4 6 5 2 8 613 1 1 1 1 1 1 514 39 7 13 20 15 3 4105%= =( ): 4.5:6.3 0.35:0.63 138:56 1 6
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