题目内容
| 60%×
| 1-
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|
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| 125%X-X=28 | (1+40%)X=98 | 1-20%X=
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1+20%X=
| 60%X+25=40 | 1-25%X=
| ||||||||||
X-25%X=
| 2X+30%X=9.2 | 80%X+12=40 | ||||||||||
| X-20%X=16 | X+30%X=65 | 1-
|
(1)
| 5 |
| 8 |
(2)60%×
| 5 |
| 6 |
(3)1-
| 2 |
| 7 |
| 5 |
| 7 |
(4)
| 5 |
| 6 |
| 1 |
| 6 |
(5)
| 4 |
| 7 |
| 3 |
| 7 |
(6)
| 7 |
| 9 |
| 2 |
| 3 |
| 1 |
| 9 |
(7)125%X-X=28,
0.25X=28,
0.25X÷0.25=28÷0.25,
X=112;
(8)(1+40%)X=98,
1.4X=98,
1.4X÷1.4=98÷1.4,
X=70;
(9)1-20%X=
| 1 |
| 4 |
1-20%X+20%X=
| 1 |
| 4 |
| 1 |
| 4 |
| 1 |
| 4 |
| 1 |
| 4 |
| 1 |
| 4 |
20%X=0.75,
20%X÷20%=0.75÷20%,
X=3.75;
(10)1+20%X=
| 1 |
| 4 |
1+20%X-1=
| 1 |
| 4 |
20%X=-0.75,
20%X÷20%=-0.75÷20%,
X=-3.75;
(11)60%X+25=40,
60%X+25-25=40-25,
60%X=15,
60%X÷60%=15÷60%,
X=25;
(12)1-25%X=
| 3 |
| 4 |
1-25%X+25%X=
| 3 |
| 4 |
| 3 |
| 4 |
| 3 |
| 4 |
| 3 |
| 4 |
| 3 |
| 4 |
25%X=0.25,
25%X÷25%=0.25÷25%,
X=1;
(13)X-25%X=
| 3 |
| 4 |
0.75X=
| 3 |
| 4 |
0.75X÷0.75=
| 3 |
| 4 |
X=1;
(14)2X+30%X=9.2,
2.3X=9.2,
2.3X÷2.3=9.2÷2.3,
X=4;
(15)80%X+12=40,
80%X+12-12=40-12,
80%X=28,
80%X÷80%=28÷80%,
X=35;
(16)X-20%X=16,
0.8X=16,
0.8X÷0.8=16÷0.8,
X=20;
(17)X+30%X=65,
1.3X=65,
1.3X÷1.3=65÷1.3,
X=50;
(18)1-
| 1 |
| 3 |
| 5 |
| 6 |
1-
| 1 |
| 3 |
| 1 |
| 3 |
| 5 |
| 6 |
| 1 |
| 3 |
| 5 |
| 6 |
| 1 |
| 3 |
| 5 |
| 6 |
| 1 |
| 3 |
| 5 |
| 6 |
| 5 |
| 6 |
| 1 |
| 3 |
| 1 |
| 6 |
| 1 |
| 3 |
| 1 |
| 3 |
| 1 |
| 6 |
| 1 |
| 3 |
X=
| 1 |
| 2 |
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