用你喜欢的方法计算.25×13+23÷5234×97+34×3(118-154)÷15419÷[(15+34)×56].-六年级数学

题目简介

用你喜欢的方法计算.25×13+23÷5234×97+34×3(118-154)÷15419÷[(15+34)×56].-六年级数学

题目详情

用你喜欢的方法计算.
2
5
×
1
3
+
2
3
÷
5
2
3
4
×97+
3
4
×3
1
18
-
1
54
)÷
1
54
19÷[(
1
5
+
3
4
)×
5
6
].
题型:解答题难度:中档来源:不详

答案

(1)class="stub"2
5
×class="stub"1
3
+class="stub"2
3
÷class="stub"5
2

=class="stub"2
5
×class="stub"1
3
+class="stub"2
3
×class="stub"2
5

=class="stub"2
5
×(class="stub"1
3
+class="stub"2
3

=class="stub"2
5
×1
=class="stub"2
5


(2)class="stub"3
4
×97+class="stub"3
4
×3
=class="stub"3
4
×(97+3)
=class="stub"3
4
×100
=75;

(3)(class="stub"1
18
-class="stub"1
54
)÷class="stub"1
54

=(class="stub"1
18
-class="stub"1
54
)×54
=class="stub"1
18
×54-class="stub"1
54
×54
=3-1
=2;

(4)19÷[(class="stub"1
5
+class="stub"3
4
)×class="stub"5
6
]
=19÷[class="stub"19
20
×class="stub"5
6
]
=19÷class="stub"19
24

=24.

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