题目内容

用递等式计算.
2010-48×14÷32
5.58-1.77-1.23
[1-(
1
2
-
1
9
)]×
9
26
9
16
+(
7
16
-
1
4
)÷
1
2
973×99+97336×(
1
12
+
1
9
-
1
24
(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
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
+36×
1
9
-36×
1
24

=3+4-
3
2

=7-
3
2

=5
1
2
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