脱式计算,能简算的要简算:3-518×2740-1316=79÷115+29×511=65×101-65=70.2÷[(5.3-1.4)×0.2]=45×544=14×4÷14×4=-数学

题目简介

脱式计算,能简算的要简算:3-518×2740-1316=79÷115+29×511=65×101-65=70.2÷[(5.3-1.4)×0.2]=45×544=14×4÷14×4=-数学

题目详情

脱式计算,能简算的要简算:
3-
5
18
×
27
40
-
13
16
=
7
9
÷
11
5
+
2
9
×
5
11
=
65×101-65=
70.2÷[(5.3-1.4)×0.2]=45×
5
44
=
1
4
×4÷
1
4
×4=
题型:解答题难度:中档来源:不详

答案

(1)3-class="stub"5
18
×class="stub"27
40
-class="stub"13
16

=3-class="stub"3
16
-class="stub"13
16

=3-(class="stub"3
16
+class="stub"13
16
),
=3-1,
=2;
(2)class="stub"7
9
÷class="stub"11
5
+class="stub"2
9
×class="stub"5
11

=class="stub"7
9
×class="stub"5
11
+class="stub"2
9
×class="stub"5
11

=class="stub"5
11
×(class="stub"7
9
+class="stub"2
9
),
=class="stub"5
11

(3)65×101-65,
=65×(101-1),
=65×100,
=6500;
(4)70.2÷[(5.3-1.4)×0.2],
=70.2÷(3.9×0.2),
=70.2÷0.78,
=90;
(5)45×class="stub"5
44

=44×class="stub"5
44
+class="stub"5
44

=5class="stub"5
44

(6)class="stub"1
4
×4÷class="stub"1
4
×4,
=1×4×4,
=16.

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