看谁都能算对!(能简算的请写出简算过程)624-3.2×1.5÷0.19.43+0.78-2.4323+(12+23)×271627×5+1127÷1556-[(15+13)÷89].-数学

题目简介

看谁都能算对!(能简算的请写出简算过程)624-3.2×1.5÷0.19.43+0.78-2.4323+(12+23)×271627×5+1127÷1556-[(15+13)÷89].-数学

题目详情

看谁都能算对!(能简算的请写出简算过程)
624-3.2×1.5÷0.19.43+0.78-2.43
2
3
+(
1
2
+
2
3
)×
2
7
16
27
×5+
11
27
÷
1
5
5
6
-[(
1
5
+
1
3
)÷
8
9
].
题型:解答题难度:中档来源:不详

答案

(1)624-3.2×1.5÷0.1,
=624-4.8÷0.1,
=624-48,
=576;

(2)9.43+0.78-2.43,
=9.43-2.43+0.78,
=7+0.78,
=7.78;

(3)class="stub"2
3
+(class="stub"1
2
+class="stub"2
3
)×class="stub"2
7

=class="stub"2
3
+class="stub"7
6
×class="stub"2
7

=class="stub"2
3
+class="stub"1
3

=1;

(4)class="stub"16
27
×5+class="stub"11
27
÷class="stub"1
5

=class="stub"16
27
×5+class="stub"11
27
×5,
=(class="stub"16
27
+class="stub"11
27
)×5,
=1×5,
=5;

(5)class="stub"5
6
-[(class="stub"1
5
+class="stub"1
3
)÷class="stub"8
9
],
=class="stub"5
6
-[class="stub"8
15
÷class="stub"8
9
],
=class="stub"5
6
-class="stub"3
5

=class="stub"7
30

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