| 9.63-7.52-2.49+0.43 | 2000-1998+1996-1994+…-6+4-2 | ||||||||||||||||||
| [1-(
|
=(9.63+0.43)-(7.52+2.49),
=10.06-10.01,
=0.05;
(2)2000-1998+1996-1994+…-6+4-2,
=++…+(8-6)+(4-2),
=2×500,
=1000;
(3)
| 1 |
| 2 |
| 7 |
| 8 |
| 4 |
| 3 |
| 1 |
| 4 |
=
| 2 |
| 3 |
| 7 |
| 8 |
| 7 |
| 8 |
| 1 |
| 4 |
=
| 2 |
| 3 |
| 7 |
| 8 |
| 1 |
| 4 |
=
| 2 |
| 3 |
| 7 |
| 8 |
| 1 |
| 4 |
=
| 2 |
| 3 |
| 1 |
| 4 |
=
| 2 |
| 3 |
| 1 |
| 4 |
=
| 2 |
| 3 |
| 7 |
| 10 |
| 1 |
| 4 |
=10+
| 7 |
| 15 |
| 1 |
| 4 |
=10
| 13 |
| 60 |
(4)[1-(
| 1 | ||
12+
|
| 1 |
| 10 |
| 1 |
| 2 |
| 11 |
| 25 |
=[1-(
| 1 | ||
|
| 1 |
| 10 |
| 1 |
| 2 |
| 11 |
| 25 |
=[1-(
| 2 |
| 25 |
| 1 |
| 10 |
| 1 |
| 2 |
| 11 |
| 25 |
=[1-
| 9 |
| 50 |
| 5 |
| 2 |
| 11 |
| 25 |
=[1-
| 9 |
| 20 |
| 25 |
| 11 |
=
| 11 |
| 20 |
| 25 |
| 11 |
=
| 5 |
| 4 |