问题 解答题
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
答案

(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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