脱式计算,能简算的要简算.511×79+79×61151×10110.25-3.75-6.25+7.7535×12+350÷703+0.7÷[(56-14)×24]13÷65×910.-数学

题目简介

脱式计算,能简算的要简算.511×79+79×61151×10110.25-3.75-6.25+7.7535×12+350÷703+0.7÷[(56-14)×24]13÷65×910.-数学

题目详情

脱式计算,能简算的要简算.
5
11
×
7
9
+
7
9
×
6
11
51×10110.25-3.75-6.25+7.75
35×12+350÷703+0.7÷[(
5
6
-
1
4
)×24]
1
3
÷
6
5
×
9
10
题型:解答题难度:中档来源:不详

答案


(1)class="stub"5
11
×class="stub"7
9
+class="stub"7
9
×class="stub"6
11

=(class="stub"5
11
+class="stub"6
11
)×class="stub"7
9

=1×class="stub"7
9

=class="stub"7
9


(2)51×101,
=51×(100+1),
=51×100+51×1,
=5100+51,
=5151;

(3)10.25-3.75-6.25+7.75,
=(10.25+7.75)-(3.75+6.25),
=18-10,
=8;

(4)35×12+350÷70,
=420+5,
=425;

(5)3+0.7÷[(class="stub"5
6
-class="stub"1
4
)×24],
=3+0.7÷[class="stub"5
6
×24-class="stub"1
4
×24],
=3+0.7÷[20-6],
=3+0.7÷14,
=3+0.05,
=3.05;

(6)class="stub"1
3
÷class="stub"6
5
×class="stub"9
10

=class="stub"5
18
×class="stub"9
10

=class="stub"1
4

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