脱式计算.(友情提醒:有的可以简算)4000-3456÷32×53.68-3.6×0.2+0.1848×9.9+48×0.1(1-34)÷0.25×4(6-6×23)÷122÷[712+(56-512

题目简介

脱式计算.(友情提醒:有的可以简算)4000-3456÷32×53.68-3.6×0.2+0.1848×9.9+48×0.1(1-34)÷0.25×4(6-6×23)÷122÷[712+(56-512

题目详情

脱式计算.(友情提醒:有的可以简算)
4000-3456÷32×5
3.68-3.6×0.2+0.18 48×9.9+48×0.1
(1-
3
4
)÷0.25×4 
(6-6×
2
3
)÷12 
2÷[
7
12
+(
5
6
-
5
12
)].
题型:解答题难度:中档来源:不详

答案

(1)4000-3456÷32×5,
=4000-108×5,
=4000-540,
=3460;

(2)3.68-3.6×0.2+0.18,
=3.68+0.18-0.72,
=3.86-0.72,
=3.14;

(3)48×9.9+48×0.1,
=48×(9.9+0.1),
=48×10,
=48;

(4)(1-class="stub"3
4
)÷0.25×4,
=class="stub"1
4
÷class="stub"1
4
×4,
=1×4,
=4;

(5)(6-6×class="stub"2
3
)÷12,
=(6-4)÷12,
=2÷12,
=class="stub"1
6


(6)2÷[class="stub"7
12
+(class="stub"5
6
-class="stub"5
12
)],
=2÷[class="stub"7
12
+(class="stub"10
12
-class="stub"5
12
)],
=2÷[class="stub"7
12
+class="stub"5
12
],
=2÷1,
=2.

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