用你喜欢的方法计算.136×21352001×3.14+200.1×31.4+20.01×31458-[(12+35)×511]333×334+999×2221.25×17.6+36.1÷0.8+2.

题目简介

用你喜欢的方法计算.136×21352001×3.14+200.1×31.4+20.01×31458-[(12+35)×511]333×334+999×2221.25×17.6+36.1÷0.8+2.

题目详情

用你喜欢的方法计算.
136×
2
135
2001×3.14+200.1×31.4+20.01×314
5
8
-[(
1
2
+
3
5
)×
5
11
]
333×334+999×222
1.25×17.6+36.1÷0.8+2.63×12.51
1
8
÷(
1
4
+2.5×
4
5
题型:解答题难度:中档来源:不详

答案

(1)136×class="stub"2
135

=(135+1)×class="stub"2
135

=135×class="stub"2
135
+1×class="stub"2
135

=2+class="stub"2
135

=2class="stub"2
135


(2)2001×3.14+200.1×31.4+20.01×314
=2001×3.14+2001×3.14+2001×3.14,
=2001×3.14×3,
=(2000+1)×9.42,
=2000×9.42+1×9.42,
=18840+9.42,
=18849.42;

(3)class="stub"5
8
-[(class="stub"1
2
+class="stub"3
5
)×class="stub"5
11
]
=class="stub"5
8
-[class="stub"11
10
×class="stub"5
11
],
=class="stub"5
8
-class="stub"1
2

=class="stub"1
8


(4)333×334+999×222
=333×334+333×(3×222),
=333×334+333×666,
=333×(334+666),
=333×1000,
=333000.

(5)1.25×17.6+36.1÷0.8+2.63×12.5
=1.25×17.6+36.1×1.25+26.3×1.25,
=(17.6+36.1+26.3)×1.25,
=80×1.25,
=100;

(6)1class="stub"1
8
÷(class="stub"1
4
+2.5×class="stub"4
5

=1class="stub"1
8
÷(class="stub"1
4
+2),
=class="stub"9
8
÷class="stub"9
4

=class="stub"1
2

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