人教版六年级数学下册解比例专项练习题71Word格式文档下载.docx
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90—:
x=30:
1.8
8
5755
—=——=—
7xx4
111.23
230.4x
x2:
x=1:
5
482
6=—:
—0.6:
x=9:
0.5
57
106
7
4.8x
0.7:
0.4=x:
70—:
x=3:
120
1331
2xx7
111.84
6—=—
840.6x
x9:
x=4.5:
294
7=—:
—80:
0.2
48
108
—=—80:
x=20:
2x
50:
0.9=x:
60—:
x=60:
2
1531
5xx3
271.25
3—=—
380.6x
x6:
4
468
—3:
0.4
26
64
—=—3:
x=0.75:
4x
2:
0.1=x:
30—:
x=0.3:
3
1826
111.82
7—=—
270.8x
x3:
x=1.5:
464
5=—:
—50:
x=10:
70
47
127
—=—6:
3.2x
4
20:
70=x:
5—:
150
5957
7xx6
511.63
642.2x
x0.6:
467
10=—:
—60:
x=0.4:
6
102
1.2x
60:
0.3=x:
x=0.9:
7
1253
3xx4
131.47
8—=—
642.8x
x40:
494
—0.4:
80
46
123
—=—20:
x=5:
6x
0.7—:
15
2255
3xx6
160.46
752.2x
x20:
9
293
2=—:
—40:
36
48
—=—30:
x=7.5:
0.6:
x=90:
1.5
2238
7xx7
131.84
242.2x
263
50
142
2.8x
9
0.9:
0.6=x:
0.3—:
x=6:
1981
110.62
2—=—
x7:
x=3.5:
479
8=—:
x=50:
3
37
206
—=—0.6:
x=0.15:
3—:
12
6
3699
5xx8
311.64
421.2x
x0.5:
x=0.25:
298
—0.3:
182
—=—0.7:
x=0.175:
3:
2—:
1291
522x
x0.8:
—0.9:
4.4x
1:
7=x:
0.6—:
1661
2xx3
141.42
4—=—
752.4x
277
—70:
163
1.6x
0.1:
9=x:
18
1561
2xx4
3119
221.6x
x60:
368
9=—:
—4:
—=—70:
x=17.5:
6—:
1.2
5
1962
7xx3
411.69
541.6x
x0.7:
x=0.35:
589
—0.5:
60
68
3.6x
0.4:
0.2=x:
80—:
x=0.6:
2871
3xx7
141.68
232.6x
599
—5:
x=7:
0.3
128
0.8:
6=x:
7—:
1241
3xx8
631.47
540.4x
x90:
x=45:
385
100
38
86
—=—8:
x=2: