1、 528 3 5 8 5 14 11 11 4 6 5 1 3 1 9 18 5 7 4 3 4 4四、计算下面各题。17 7 6 19 21 6 1 2 4 17 5 20 20 5 8 3125%= =( ):0.25= ( )%= ( ):27 2.7:5.4 0.27:0.9 72:36 72 4 4 3 6 1 15 7 455 5 2 7 4 16 5 5 1 8 3 1 7 12 24 3 7 2 8 6 611 1 1 15 1 1 1 1 14 11 7 16 25 25 3 6195%= =( ):0.9= ( )%= ( ):20 0.4:1.4 0.12:0.48 12
2、0:72 45 1 3 6 3 1 1 18 58 2 5 4 5 20 7 7 1 7 7 5 2 19 32 2 6 6 4 3 819 1 10 13 14 34 7 15 95 11 14 15 35 6 20.1= ( )%= ( ):10 1.5:3.5 0.35:0.7 80:16 80 1 7 9 4 1 16 8 484 8 8 5 6 15 7 7 1 1 1 6 6 1 3 32 2 2 5 7 5 419 7 8 1 21 16 3 310 76 7 18 20 15 4 4205%= =( ):16 1 0.05:0.07 76:19 28 8 1 4 2 7 19
3、17 767 2 5 3 8 20 11 11 5 6 1 1 4 1 4 12 6 7 4 8 3 213 1 12 8 1 4 3 15 39 11 9 5 5 2 695%= =( ):0.5= ( )%= ( ):40 2.1:4.2 0.1:0.9 60:45 7 4 2 3 8 13 20 6 5 3 4 7 12 5 5 3 7 4 6 4 13 16 2 8 5 7 3 511 7 12 10 19 1 1 714 44 7 11 20 25 4 825%= =( ):0.4= ( )%= ( ):4 0.24:0.48 104:26 4 7 5 1 5 14 16 703 6
4、 6 8 6 13 5 5 4 7 7 1 3 1 6 27 5 6 8 8 2 417 7 12 2 6 16 1 88 17 5 3 5 15 7 7265%= =( ):0.05= ( )%= ( ): 0.1:0.8 0.3:1 50:30 100 9 6 7 5 6 11 10 558 7 6 4 7 12 11 11 3 1 7 1 6 14 27 2 6 6 8 7 317 7 12 1 4 1 7 610 51 7 6 5 15 6 5275%= =( ): 3:8 0.4:0.56 96:60 1 6 9 5 1 17 2 687 7 8 4 7 18 7 7 7 2 2 1
5、 6 18 27 6 3 3 2 5 511 1 12 5 4 16 1 15 44 5 6 5 15 4 40.95= ( )%= ( ):15 2.4:3.6 0.25:0.5 96:48 35 7 9 3 8 9 1 9 48 8 2 7 8 18 11 11 5 1 8 4 6 16 18 4 4 7 5 5 413 1 6 21 1 44 3 14 52 5 20 20 45 2 3135%= =( ):0.55= ( )%= ( ):18 8 0.24:0.72 56:28 42 6 5 7 1 1 10 19 407 6 6 8 6 11 7 7 7 5 1 1 7 1 6 32 3 4 8 7 8 419 1 16 1 4 26 5 118 57 5 12 5 25 4 2255%= =( ):32 1.8:7.2 0.07:0.63 92:23 64 1 6 9 1 5 17 15 342 5 8 2 4 16 5 5 1 1 1 7 1 18 24 6 4 4 8 2 719 1 6 7 1 16 4 18 38 5 8 20 15 5 275%= =( ):24 1.2:5.4 0.05:0.06 140:84 1 1
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