计算下面各题.39×26-25×121.25×(3.2-2.4)÷1149×25+35×4979÷710×38(15-38×49)÷3567÷[(1+12)÷12].-六年级数学

题目简介

计算下面各题.39×26-25×121.25×(3.2-2.4)÷1149×25+35×4979÷710×38(15-38×49)÷3567÷[(1+12)÷12].-六年级数学

题目详情

计算下面各题.
39×26-25×121.25×(3.2-2.4)÷11
4
9
×
2
5
+
3
5
×
4
9
7
9
÷
7
10
×
3
8
1
5
-
3
8
×
4
9
)÷
3
5
6
7
÷[(1+
1
2
)÷
1
2
].
题型:解答题难度:中档来源:不详

答案

(1)39×26-25×12,
=1014-300,
=714;

(2)1.25×(3.2-2.4)÷11,
=1.25×0.8÷11,
=1÷11,
=class="stub"1
11


(3)class="stub"4
9
×class="stub"2
5
+class="stub"3
5
×class="stub"4
9

=class="stub"4
9
×(class="stub"2
5
+class="stub"3
5
),
=class="stub"4
9
×1,
=class="stub"4
9


(4)class="stub"7
9
÷class="stub"7
10
×class="stub"3
8

=class="stub"7
9
×class="stub"10
7
×class="stub"3
8

=class="stub"5
12


(5)(class="stub"1
5
-class="stub"3
8
×class="stub"4
9
)÷class="stub"3
5

=(class="stub"1
5
-class="stub"1
6
)÷class="stub"3
5

=class="stub"1
30
÷class="stub"3
5

=class="stub"1
18


(6)class="stub"6
7
÷[(1+class="stub"1
2
)÷class="stub"1
2
],
=class="stub"6
7
÷[class="stub"3
2
÷class="stub"1
2
],
=class="stub"6
7
÷3,
=class="stub"2
7

更多内容推荐