人教版六年级数学下册解比例专项练习题124Word格式文档下载.docx
《人教版六年级数学下册解比例专项练习题124Word格式文档下载.docx》由会员分享,可在线阅读,更多相关《人教版六年级数学下册解比例专项练习题124Word格式文档下载.docx(16页珍藏版)》请在冰点文库上搜索。
111
—:
x20:
x=10:
4
367
—90:
x=0.6:
40
59
122
9
2x
1
90:
2=x:
0.2—:
x=90:
15
2891
3xx2
110.43
9—=—
851.6x
x0.6:
x=0.3:
2
562
3=—:
—2:
x=4:
6
28
47
—=—0.4:
x=0.1:
3.2x
1:
5=x:
2—:
x=30:
1.5
1981
2xx6
151.64
740.8x
x0.7:
x=0.35:
489
9=—:
—0.6:
0.5
56
147
—=—20:
x=5:
8
5
30:
0.4=x:
0.7—:
1.2
2851
3xx7
510.48
3—=—
470.6x
x0.2:
386
2=—:
—0.8:
x=40:
1
47
185
5.6x
0.8:
0.9=x:
60—:
x=6:
120
3
1521
5xx8
5115
8—=—
420.6x
x50:
x=25:
467
10=—:
—20:
60
49
187
4x
0.6:
9=x:
0.4—:
x=0.9:
4
2973
3xx4
1124
2—=—
251.4x
7
298
—8:
70
29
148
x=3:
2771
3xx5
111.68
551.2x
x0.4:
x=0.2:
288
4=—:
—0.2:
x=100:
90
69
—=—3:
x=0.75:
5.2x
8:
20=x:
40—:
18
1681
1416
531.2x
478
8=—:
x=8:
10
46
—=—7:
x=1.75:
1.2x
0.9:
3—:
1791
2xx2
111.85
5—=—
432.8x
5
267
x=7:
58
1.6x
4:
x=60:
1553
140.48
7—=—
332.4x
x9:
x=4.5:
378
—0.5:
x=2:
100
26
208
0.8x
4=x:
0.6—:
2321
7xx3
710.42
831.4x
7=—:
—3:
39
124
—=—0.8:
2.8x
90=x:
0.3—:
180
3664
5xx5
1318
321x
x4:
395
43
—=—5:
x=1.25:
6:
0.6=x:
7—:
1468
7xx7
311.87
440.8x
x0.3:
x=0.15:
572
—30:
0.2
0.5=x:
1261
2xx5
4422
550.6x
x2:
x=1:
373
0.4:
5—:
2
1834
2xx3
270.44
361.6x
469
—60:
x=0.4:
0.9
38
163
—=—6:
x=1.5:
8
0.2:
1346
411.23
532.4x
x0.5:
x=0.25:
595
—80:
x=50:
30
57
45
—=—70:
x=17.5:
80—:
4891