用你喜欢的方法计算.6710×54+1.25×3.375+4.2+8.25+5.858-(14+35)÷115408+540÷18×2468÷[1÷(0.1-0.09)](115+118)×90-11

题目简介

用你喜欢的方法计算.6710×54+1.25×3.375+4.2+8.25+5.858-(14+35)÷115408+540÷18×2468÷[1÷(0.1-0.09)](115+118)×90-11

题目详情

用你喜欢的方法计算.
67
10
×
5
4
+1.25×3.3
75+4.2+8.25+5.8
5
8
-(
1
4
+
3
5
)÷
11
5
408+540÷18×2468÷[1÷(0.1-0.09)]
1
15
+
1
18
)×90-11.
题型:解答题难度:中档来源:不详

答案

(1)class="stub"67
10
×class="stub"5
4
+1.25×3.3,
=8.375+4.125,
=12.5;

(2)75+4.2+8.25+5.8,
=75+8.25+(4.2+5.8),
=83.25+10,
=93.25;

(3)class="stub"5
8
-(class="stub"1
4
+class="stub"3
5
)÷class="stub"11
5

=class="stub"5
8
-class="stub"17
20
×class="stub"5
11

=class="stub"5
8
-class="stub"17
44

=class="stub"21
88


(4)408+540÷18×24,
=408+540÷18×24,
=408+720,
=1128;

(5)68÷[1÷(0.1-0.09)],
=68÷[1÷0.01],
=68÷100,
=0.68;

(6)(class="stub"1
15
+class="stub"1
18
)×90-11,
=class="stub"1
15
×90+class="stub"1
18
×90-11,
=6+5-11,
=0.

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