计算下面各题,能简算的要简算.(1)635-5.08×(0.875-58)(2)4257-1178-23917(3)6.58×135+3.42÷58(4)2.4×(12-13)÷117(5)[4+(1

题目简介

计算下面各题,能简算的要简算.(1)635-5.08×(0.875-58)(2)4257-1178-23917(3)6.58×135+3.42÷58(4)2.4×(12-13)÷117(5)[4+(1

题目详情

计算下面各题,能简算的要简算.
(1)6
3
5
-5.08×(0.875-
5
8

(2)42
5
7
-11
7
8
-23
9
17

(3)6.58×1
3
5
+3.42÷
5
8

(4)2.4×(
1
2
-
1
3
)÷1
1
7

(5)[4+(1
5
6
-0.75)
÷2
8
9
]
×2
1
7
题型:解答题难度:中档来源:不详

答案

(1)6class="stub"3
5
-5.08×(0.875-class="stub"5
8
),
=6class="stub"3
5
-5.08×0.25,
=6class="stub"3
5
-1.27,
=5.33;

(2)42class="stub"5
7
-11class="stub"7
8
-23class="stub"9
17

=30class="stub"47
56
-23class="stub"9
17

=7class="stub"295
952


(3)6.58×1class="stub"3
5
+3.42÷class="stub"5
8

=1class="stub"3
5
×
(6.58+3.42),
=1class="stub"3
5
×
10,
=16;

(4)2.4×(class="stub"1
2
-class="stub"1
3
)÷1class="stub"1
7

=2.4×class="stub"1
6
÷1class="stub"1
7

=0.4÷1class="stub"1
7

=0.35;

(5)[4+(1class="stub"5
6
-0.75)
÷2class="stub"8
9
]
×2class="stub"1
7

=[4+1class="stub"1
12
÷2class="stub"8
9
]
×2class="stub"1
7

=[4+class="stub"3
8
]×2class="stub"1
7

=4class="stub"3
8
×2class="stub"1
7

=9class="stub"3
8

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