用合适的方法计算.35×12+350÷7054.2-29+4.8-16937÷56+47×650.7÷[(56-14)×24](117+14)×4+1317(45+14)÷73+710.-数学

题目简介

用合适的方法计算.35×12+350÷7054.2-29+4.8-16937÷56+47×650.7÷[(56-14)×24](117+14)×4+1317(45+14)÷73+710.-数学

题目详情

用合适的方法计算.
35×12+350÷70
54.2-
2
9
+4.8-
16
9
3
7
÷
5
6
+
4
7
×
6
5
0.7÷[(
5
6
-
1
4
)×24]
1
17
+
1
4
)×4+
13
17
4
5
+
1
4
)÷
7
3
+
7
10
题型:解答题难度:中档来源:不详

答案

(1)35×12+350÷70,
=420+5,
=425;

(2)54.2-class="stub"2
9
+4.8-class="stub"16
9

=(54.2+4.8)-(class="stub"2
9
+class="stub"16
9
),
=59-2,
=57;

(3)class="stub"3
7
÷class="stub"5
6
+class="stub"4
7
×class="stub"6
5

=class="stub"3
7
×class="stub"6
5
+class="stub"4
7
×class="stub"6
5

=(class="stub"3
7
+class="stub"3
7
)×class="stub"6
5

=1×class="stub"6
5

=class="stub"6
5


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

(5)(class="stub"1
17
+class="stub"1
4
)×4+class="stub"13
17

=class="stub"1
17
×
4+class="stub"1
4
×
4+class="stub"13
17

=class="stub"4
17
+class="stub"13
17
+1,
=1+1,
=2;

(6)(class="stub"4
5
+class="stub"1
4
)÷class="stub"7
3
+class="stub"7
10

=class="stub"21
20
×class="stub"3
7
+class="stub"7
10

=class="stub"9
20
+class="stub"7
10

=class="stub"23
20

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