人教版六年级数学下册解比例专项练习题67文档格式.docx
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342.4x
111
—:
x2:
x=1:
7
395
6=—:
—0.4:
x=3:
58
126
—=—60:
x=15:
3.2x
30:
3=x:
0.8—:
x=90:
15
5
1481
5xx6
910.43
4—=—
821.6x
x3:
x=1.5:
9
384
7=—:
—0.7:
20
38
45
2x
8
0.9:
0.7—:
x=9:
12
7
1384
2xx3
610.88
3—=—
780.4x
x4:
x=2:
474
—9:
2
46
83
—=—2:
x=0.5:
4.4x
8:
1=x:
0.2—:
x=6:
18
4
1823
3xx2
211.84
323x
x40:
x=20:
4
368
9=—:
—40:
x=30:
40
27
147
—=—0.2:
x=0.05:
20:
0.9=x:
7—:
180
3
1335
2xx4
6526
761.8x
x0.4:
x=0.2:
5
398
3=—:
—2:
1
168
—=—3:
x=0.75:
0.1:
x=0.3:
150
2962
5xx3
111.27
9—=—
631.4x
x80:
x=40:
594
—5:
28
208
—=—8:
3.6x
0.5=x:
1.8
2951
3xx7
1122
7—=—
252.6x
x0.7:
x=0.35:
388
—50:
8
56
164
—=—0.8:
1.2x
90:
10=x:
3—:
x=60:
1.2
1972
111.46
580.4x
467
5=—:
—7:
x=70:
90
48
123
—=—70:
x=17.5:
6
2.8x
80:
9—:
1.5
2851
170.49
6—=—
481.8x
x0.8:
488
70
162
—=—0.7:
x=0.175:
2.4x
9
5=x:
0.6—:
1961
110.69
382.2x
287
—80:
x=8:
29
144
—=—0.9:
x=0.225:
5:
0.1=x:
0.5—:
2561
110.42
5—=—
633x
x0.2:
x=0.1:
487
104
—=—6:
60=x:
1391
2xx7
171.49
481.2x
469
4=—:
—90:
80
37
148
—=—20:
x=5:
90=x:
60—:
x=0.9:
2451
3xx6
141.26
852.4x
x90:
x=45:
588
10=—:
87
80=x:
2591
3xx4
151.88
443x
x5:
x=2.5:
276
39
44
6x
8—:
2
1541
2xx6
611.46
581.6x
x0.9:
x=0.45:
376
8=—:
—60:
0.8
207
—=—9:
x=2.25:
5.2x
0.5:
0.2=x:
2341
5xx7
1617
771.8x
x7:
x=3.5:
279
—4:
188
30—:
2431