题目内容
| 用递等式计算. 2010-48×14÷32 | 5.58-1.77-1.23 | ||||||||||||||
[1-(
|
| ||||||||||||||
| 973×99+973 | 36×(
|
(1)2010-48×14÷32,
=2010-672÷32,
=2010-21,
=1989;
(2)5.58-1.77-1.23,
=5.58-(1.77+1.23),
=5.58-3,
=2.58;
(3)[1-(
-
)]×
,
=[1-
]×
,
=
×
,
=
;
(4)
+(
-
)÷
,
=
+
÷
,
=
+
,
=
;
(5)973×99+973,
=973×(99+1),
=973×100,
=97300;
(6)36×(
+
-
),
=36×
+36×
-36×
,
=3+4-
,
=7-
,
=5
.
=2010-672÷32,
=2010-21,
=1989;
(2)5.58-1.77-1.23,
=5.58-(1.77+1.23),
=5.58-3,
=2.58;
(3)[1-(
| 1 |
| 2 |
| 1 |
| 9 |
| 9 |
| 26 |
=[1-
| 7 |
| 18 |
| 9 |
| 26 |
=
| 11 |
| 18 |
| 9 |
| 26 |
=
| 11 |
| 52 |
(4)
| 9 |
| 16 |
| 7 |
| 16 |
| 1 |
| 4 |
| 1 |
| 2 |
=
| 9 |
| 16 |
| 3 |
| 16 |
| 1 |
| 2 |
=
| 9 |
| 16 |
| 6 |
| 16 |
=
| 15 |
| 16 |
(5)973×99+973,
=973×(99+1),
=973×100,
=97300;
(6)36×(
| 1 |
| 12 |
| 1 |
| 9 |
| 1 |
| 24 |
=36×
| 1 |
| 12 |
| 1 |
| 9 |
| 1 |
| 24 |
=3+4-
| 3 |
| 2 |
=7-
| 3 |
| 2 |
=5
| 1 |
| 2 |
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