人教版六年级数学下册解比例专项练习题81Word文档格式.docx
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80
26
183
—=—4:
x=1:
2
5.6x
1
70:
0.9=x:
0.8—:
x=0.3:
1.2
3
1551
2xx2
611.26
552.4x
x6:
x=3:
8
573
3=—:
—0.4:
x=8:
100
38
84
—=—0.3:
x=0.075:
4.4x
0.8:
6=x:
0.6—:
x=0.6:
15
1891
2xx5
911.84
6—=—
850.4x
x0.8:
x=0.4:
7
473
10=—:
—0.9:
0.3
49
108
—=—5:
x=1.25:
3
2x
3=x:
7—:
1861
2xx6
110.42
5—=—
883x
268
—3:
x=60:
4
37
162
—=—30:
x=7.5:
0.8x
8
0.6:
0.3=x:
20—:
x=0.9:
7
1741
2xx3
161.47
472x
x0.9:
x=0.45:
299
—0.7:
x=0.2:
58
189
—=—3:
x=0.75:
4x
0.5—:
120
2
1941
3xx7
160.85
2—=—
371x
x0.2:
x=0.1:
6
275
—40:
30
27
148
—=—80:
x=20:
80:
4=x:
90—:
x=6:
1381
5xx2
111.67
8—=—
471.6x
x70:
x=35:
583
—0.8:
65
—=—2:
x=0.5:
20:
5=x:
0.4—:
1.8
2931
5xx6
141.29
7—=—
531.4x
x0.7:
x=0.35:
364
—8:
40
149
—=—0.9:
x=0.225:
1.6x
0.9:
0.3—:
1591
710.64
651x
9
283
8=—:
—20:
x=50:
70
48
125
—=—7:
x=1.75:
6x
0.4:
30=x:
4—:
4
6861
7xx6
1129
371.4x
285
7=—:
—4:
x=0.8:
0.9
36
67
—=—90:
x=22.5:
30:
0.1=x:
150
2341
110.69
251.6x
x40:
485
x=90:
0.8
103
—=—20:
x=5:
3.6x
3:
0.5=x:
0.7—:
12
4231
410.66
372.8x
363
9=—:
—0.2:
10
10:
9=x:
9—:
1295
2xx4
110.63
542x
x90:
x=45:
499
—9:
x=4:
1
166
3251
5xx7
111.24
342.4x
x2:
478
1.2x
90=x:
60—:
1321
3xx3
1124
4—=—
420.8x
x0.4:
496
—60:
29
168
2.8x
18
4745
511.85
420.6x
378
2=—:
83
—=—0.2:
x=0.05:
0.7=x:
2753
611.67
550.4x
577