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（1）523+0.5x＝634（2）(111998×8.12+53175÷23×819971998)÷41148（3）32×5+35×8+38×11+…+32003×2006（4）(18+19+110+111)×(19+110+111+112)-(18+19+110+111+112)×(19+110+111)．
题目详情
5
+0.5x＝6
（2）(1
×8.12+5
÷
×8
)÷4
（3）
+
+
+…+
（4）(
+
+
+
)×(
+
+
+
)-(
+
+
+
+
)×(
+
+
)．
2 2 3 3
3 3 4 4
(1
×8.12+5
÷
×8
)÷4
（3）
+
+
+…+
（4）(
+
+
+
)×(
+
+
+
)-(
+
+
+
+
)×(
+
+
)．
1 1 1998 1998
31 31 75 75
2 2 3 3 8
)÷4
（3）
+
+
+…+
（4）(
+
+
+
)×(
+
+
+
)-(
+
+
+
+
)×(
+
+
)．
1997 1997 1998 1998
11 11 48 48
+
+
+…+
（4）(
+
+
+
)×(
+
+
+
)-(
+
+
+
+
)×(
+
+
)．
3 3 2×5 2×5
3 3 5×8 5×8
3 3 8×11 8×11
（4）(
+
+
+
)×(
+
+
+
)-(
+
+
+
+
)×(
+
+
)．
3 3 2003×2006 2003×2006
(
+
+
+
)×(
+
+
+
)-(
+
+
+
+
)×(
+
+
)．
1 1 8 8
1 1 9 9
1 1 10 10
1 1 11 11 (
+
+
+
)-(
+
+
+
+
)×(
+
+
)．
1 1 9 9
1 1 10 10
1 1 11 11
1 1 12 12 (
+
+
+
+
)×(
+
+
)．
1 1 8 8
1 1 9 9
1 1 10 10
1 1 11 11
1 1 12 12 (
+
+
)．
1 1 9 9
1 1 10 10
1 1 11 11
| 2 |
| 3 |
| 3 |
| 4 |
（2）(1
| 1 |
| 1998 |
| 31 |
| 75 |
| 2 |
| 3 |
| 1997 |
| 1998 |
| 11 |
| 48 |
（3）
|
|
|
|
（4）(
| 1 |
| 8 |
| 1 |
| 9 |
| 1 |
| 10 |
| 1 |
| 11 |
| 1 |
| 9 |
| 1 |
| 10 |
| 1 |
| 11 |
| 1 |
| 12 |
| 1 |
| 8 |
| 1 |
| 9 |
| 1 |
| 10 |
| 1 |
| 11 |
| 1 |
| 12 |
| 1 |
| 9 |
| 1 |
| 10 |
| 1 |
| 11 |
| 2 |
| 3 |
| 3 |
| 4 |
(1
| 1 |
| 1998 |
| 31 |
| 75 |
| 2 |
| 3 |
| 1997 |
| 1998 |
| 11 |
| 48 |
（3）
|
|
|
|
（4）(
| 1 |
| 8 |
| 1 |
| 9 |
| 1 |
| 10 |
| 1 |
| 11 |
| 1 |
| 9 |
| 1 |
| 10 |
| 1 |
| 11 |
| 1 |
| 12 |
| 1 |
| 8 |
| 1 |
| 9 |
| 1 |
| 10 |
| 1 |
| 11 |
| 1 |
| 12 |
| 1 |
| 9 |
| 1 |
| 10 |
| 1 |
| 11 |
| 1 |
| 1998 |
| 31 |
| 75 |
| 2 |
| 3 |
| 1997 |
| 1998 |
| 11 |
| 48 |
（3）
|
|
|
|
（4）(
| 1 |
| 8 |
| 1 |
| 9 |
| 1 |
| 10 |
| 1 |
| 11 |
| 1 |
| 9 |
| 1 |
| 10 |
| 1 |
| 11 |
| 1 |
| 12 |
| 1 |
| 8 |
| 1 |
| 9 |
| 1 |
| 10 |
| 1 |
| 11 |
| 1 |
| 12 |
| 1 |
| 9 |
| 1 |
| 10 |
| 1 |
| 11 |
| 1997 |
| 1998 |
| 11 |
| 48 |
|
|
|
|
（4）(
| 1 |
| 8 |
| 1 |
| 9 |
| 1 |
| 10 |
| 1 |
| 11 |
| 1 |
| 9 |
| 1 |
| 10 |
| 1 |
| 11 |
| 1 |
| 12 |
| 1 |
| 8 |
| 1 |
| 9 |
| 1 |
| 10 |
| 1 |
| 11 |
| 1 |
| 12 |
| 1 |
| 9 |
| 1 |
| 10 |
| 1 |
| 11 |
|
| 3 | |
| 2×5 |
| 3 | |
| 2×5 |
| 3 | |
| 2×5 |
|
| 3 | |
| 5×8 |
| 3 | |
| 5×8 |
| 3 | |
| 5×8 |
|
| 3 | |
| 8×11 |
| 3 | |
| 8×11 |
| 3 | |
| 8×11 |
|
（4）(
| 1 |
| 8 |
| 1 |
| 9 |
| 1 |
| 10 |
| 1 |
| 11 |
| 1 |
| 9 |
| 1 |
| 10 |
| 1 |
| 11 |
| 1 |
| 12 |
| 1 |
| 8 |
| 1 |
| 9 |
| 1 |
| 10 |
| 1 |
| 11 |
| 1 |
| 12 |
| 1 |
| 9 |
| 1 |
| 10 |
| 1 |
| 11 |
|
| 3 | |
| 2003×2006 |
| 3 | |
| 2003×2006 |
| 3 | |
| 2003×2006 |
(
| 1 |
| 8 |
| 1 |
| 9 |
| 1 |
| 10 |
| 1 |
| 11 |
| 1 |
| 9 |
| 1 |
| 10 |
| 1 |
| 11 |
| 1 |
| 12 |
| 1 |
| 8 |
| 1 |
| 9 |
| 1 |
| 10 |
| 1 |
| 11 |
| 1 |
| 12 |
| 1 |
| 9 |
| 1 |
| 10 |
| 1 |
| 11 |
| 1 |
| 8 |
| 1 |
| 9 |
| 1 |
| 10 |
| 1 |
| 11 |
| 1 |
| 9 |
| 1 |
| 10 |
| 1 |
| 11 |
| 1 |
| 12 |
| 1 |
| 8 |
| 1 |
| 9 |
| 1 |
| 10 |
| 1 |
| 11 |
| 1 |
| 12 |
| 1 |
| 9 |
| 1 |
| 10 |
| 1 |
| 11 |
| 1 |
| 9 |
| 1 |
| 10 |
| 1 |
| 11 |
| 1 |
| 12 |
| 1 |
| 8 |
| 1 |
| 9 |
| 1 |
| 10 |
| 1 |
| 11 |
| 1 |
| 12 |
| 1 |
| 9 |
| 1 |
| 10 |
| 1 |
| 11 |
| 1 |
| 8 |
| 1 |
| 9 |
| 1 |
| 10 |
| 1 |
| 11 |
| 1 |
| 12 |
| 1 |
| 9 |
| 1 |
| 10 |
| 1 |
| 11 |
| 1 |
| 9 |
| 1 |
| 10 |
| 1 |
| 11 |
▼优质解答
答案和解析
（1）523+0.5x=634， 523+12x-523=634-523， 12x=1312， &nbs...
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