问题 解答题
用递等式计算,能简算的要简算.
1485+290÷58
0.125×32×0.251080-63.58-36.42
1
3
+
1
4
)×24
168.1÷(4.3×2-0.4)
5
8
+
1
4
)÷(
2
3
-
1
2
答案

(1)1485+290÷58,

=1485+5,

=1490;

(2)0.125×32×0.25,

=(0.125×8)×(4×0.25),

=1×1,

=1;

(3)1080-63.58-36.42,

=1080-(63.58+36.42),

=1080-100,

=980;

(4)(

1
3
+
1
4
)×24,

=

1
3
×24+
1
4
×
24,

=8+6,

=14;

(5)168.1÷(4.3×2-0.4),

=168.1÷(8.6-0.4),

=168.1÷8.2,

=20.5;

(6)(

5
8
+
1
4
)÷(
2
3
-
1
2
),

=

7
8
÷
1
6

=

7
8
×6,

=

21
4

=5

1
4

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