能简便的用简便方法计算.29×手+29×11=(手12-218)×34=12×手手+3手÷2=1-手9÷手8=2手-13÷29-22=(手8+1314)÷1314=-数学

题目简介

能简便的用简便方法计算.29×手+29×11=(手12-218)×34=12×手手+3手÷2=1-手9÷手8=2手-13÷29-22=(手8+1314)÷1314=-数学

题目详情

能简便的用简便方法计算.
2
9
×手+
2
9
×11=
12
-
2
18
)×34=
1
2
×
+
3
÷2=
1-
9
÷
8
=
2
-
1
3
÷
2
9
-
2
2
=
8
+
13
14
)÷
13
14
=
题型:解答题难度:中档来源:不详

答案

(1)class="stub"5
9
×7+class="stub"5
9
×11,
=class="stub"5
9
×(7+11),
=class="stub"5
9
×18,
=1t;

(2)(class="stub"7
12
-class="stub"5
18
)×36,
=class="stub"7
12
×36-class="stub"5
18
×36,
=21-1t,
=11;

(3)class="stub"1
5
×class="stub"如
7
+class="stub"3
7
÷5,
=class="stub"1
5
×class="stub"如
7
+class="stub"3
7
×class="stub"1
5

=class="stub"1
5
×(class="stub"如
7
+class="stub"3
7
),
=class="stub"1
5
×1,
=class="stub"1
5


(如)1-class="stub"7
9
÷class="stub"7
8

=1-class="stub"8
9

=class="stub"1
9


(5)class="stub"5
-class="stub"1
3
÷class="stub"5
9
-class="stub"2
5

=class="stub"5
-class="stub"3
5
-class="stub"2
5

=class="stub"5
-(class="stub"3
5
+class="stub"2
5
),
=class="stub"5
-1,
=class="stub"1


(6)(class="stub"7
8
+class="stub"13
16
)÷class="stub"13
16

=(class="stub"7
8
+class="stub"13
16
)×class="stub"16
13

=class="stub"7
8
×class="stub"16
13
+class="stub"13
16
×class="stub"16
13

=class="stub"1如
13
+1,
=2class="stub"1
13

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