递等式计算(能简算的要简算)(14-110÷2)÷31025×611+40%×51117×(115+217)×1545÷[(13+25)×411](275-1.8)÷[(1.15+1320)×53].

题目简介

递等式计算(能简算的要简算)(14-110÷2)÷31025×611+40%×51117×(115+217)×1545÷[(13+25)×411](275-1.8)÷[(1.15+1320)×53].

题目详情

递等式计算(能简算的要简算)
1
4
-
1
10
÷2
÷
3
10
2
5
×
6
11
+40%×
5
11
17×(
1
15
+
2
17
)×15
4
5
÷[(
1
3
+
2
5
)×
4
11
]
27
5
-1.8)÷[(1.15+
13
20
)×
5
3
].
题型:解答题难度:中档来源:不详

答案

(1)(class="stub"1
4
-class="stub"1
10
÷2
÷class="stub"3
10

=(class="stub"1
4
-class="stub"1
20
)×class="stub"10
3

=class="stub"1
5
×class="stub"10
3

=class="stub"2
3


(2)class="stub"2
5
×class="stub"6
11
+40%×class="stub"5
11

=class="stub"2
5
×class="stub"6
11
+class="stub"2
5
×class="stub"5
11

=class="stub"2
5
×(class="stub"6
11
+class="stub"5
11
),
=class="stub"2
5
×1,
=class="stub"2
5


(3)17×(class="stub"1
15
+class="stub"2
17
)×15
=class="stub"1
15
×15×17+class="stub"2
17
×17×15,
=17+30,
=47;

(4)class="stub"4
5
÷[(class="stub"1
3
+class="stub"2
5
)×class="stub"4
11
]
=class="stub"4
5
÷[class="stub"11
15
×class="stub"4
11
],
=class="stub"4
5
×class="stub"15
4

=3;

(5)(class="stub"27
5
-1.8)÷[(1.15+class="stub"13
20
)×class="stub"5
3
]
=(5.4-1.8)÷[(1.15+0.65)×class="stub"5
3
],
=3.6÷[1.8×class="stub"5
3
],
=3.6÷3,
=1.2.

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