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计算:(能简算的要简算)(1)34×27+27×34(2)(532+18)×16(3)45×3.5+5.5×80%+0.8(4)1318÷(56+23×38)(5)85×54÷18+745(6)0.4×[1.4-(2.4-2.25)].

题目详情
计算:(能简算的要简算)
(1)
3
4
×
2
7
+
2
7
×
3
4
(2)(
5
32
+
1
8
)×16
(3)
4
5
×3.5+5.5×80%+0.8            
(4)
13
18
÷(
5
6
+
2
3
×
3
8
(5)85×54÷18+745(6)0.4×[1.4-(2.4-2.25)].
计算:(能简算的要简算)
(1)
3
4
×
2
7
+
2
7
×
3
4
(2)(
5
32
+
1
8
)×16
(3)
4
5
×3.5+5.5×80%+0.8            
(4)
13
18
÷(
5
6
+
2
3
×
3
8
(5)85×54÷18+745(6)0.4×[1.4-(2.4-2.25)].
(1)
3
4
×
2
7
+
2
7
×
3
4
(2)(
5
32
+
1
8
)×16
(3)
4
5
×3.5+5.5×80%+0.8            
(4)
13
18
÷(
5
6
+
2
3
×
3
8
(5)85×54÷18+745(6)0.4×[1.4-(2.4-2.25)].
(1)
3
4
×
2
7
+
2
7
×
3
4
(2)(
5
32
+
1
8
)×16
(3)
4
5
×3.5+5.5×80%+0.8            
(4)
13
18
÷(
5
6
+
2
3
×
3
8
(5)85×54÷18+745(6)0.4×[1.4-(2.4-2.25)].(1)
3
4
×
2
7
+
2
7
×
3
4
(2)(
5
32
+
1
8
)×16
(3)
4
5
×3.5+5.5×80%+0.8            
(1)
3
4
×
2
7
+
2
7
×
3
4
3
4
×
2
7
+
2
7
×
3
4
3
4
343344
2
7
+
2
7
×
3
4
2
7
272277
2
7
×
3
4
2
7
272277
3
4
3
4
343344(2)(
5
32
+
1
8
)×16
5
32
+
1
8
)×16
5
32
532553232
1
8
)×16
1
8
181188(3)
4
5
×3.5+5.5×80%+0.8            
4
5
×3.5+5.5×80%+0.8            
4
5
454455(4)
13
18
÷(
5
6
+
2
3
×
3
8
(5)85×54÷18+745(6)0.4×[1.4-(2.4-2.25)].(4)
13
18
÷(
5
6
+
2
3
×
3
8
13
18
÷(
5
6
+
2
3
×
3
8
13
18
131813131818
5
6
+
2
3
×
3
8
5
6
565566
2
3
×
3
8
2
3
232233
3
8
3
8
383388(5)85×54÷18+745(6)0.4×[1.4-(2.4-2.25)].
▼优质解答
答案和解析
(1)
3
4
×
2
7
+
2
7
×
3
4

=(
3
4
+
3
4
)×
2
7

=
3
2
×
2
7

=
3
7


(2)(
5
32
+
1
8
)×16
=
5
32
×16+
1
8
×16
=
5
2
+2
=
9
2


(3)
4
5
×3.5+5.5×80%+0.8
=(3.5+5.5+1)×0.8
=10×0.8
=8;

(4)
13
18
÷(
5
6
+
2
3
×
3
8

=
13
18
÷(
5
6
+
1
4

=
13
18
÷
13
12

=
2
3


(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;

(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
3
4
34333444×
2
7
+
2
7
×
3
4

=(
3
4
+
3
4
)×
2
7

=
3
2
×
2
7

=
3
7


(2)(
5
32
+
1
8
)×16
=
5
32
×16+
1
8
×16
=
5
2
+2
=
9
2


(3)
4
5
×3.5+5.5×80%+0.8
=(3.5+5.5+1)×0.8
=10×0.8
=8;

(4)
13
18
÷(
5
6
+
2
3
×
3
8

=
13
18
÷(
5
6
+
1
4

=
13
18
÷
13
12

=
2
3


(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;

(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
2
7
27222777+
2
7
×
3
4

=(
3
4
+
3
4
)×
2
7

=
3
2
×
2
7

=
3
7


(2)(
5
32
+
1
8
)×16
=
5
32
×16+
1
8
×16
=
5
2
+2
=
9
2


(3)
4
5
×3.5+5.5×80%+0.8
=(3.5+5.5+1)×0.8
=10×0.8
=8;

(4)
13
18
÷(
5
6
+
2
3
×
3
8

=
13
18
÷(
5
6
+
1
4

=
13
18
÷
13
12

=
2
3


(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;

(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
2
7
27222777×
3
4

=(
3
4
+
3
4
)×
2
7

=
3
2
×
2
7

=
3
7


(2)(
5
32
+
1
8
)×16
=
5
32
×16+
1
8
×16
=
5
2
+2
=
9
2


(3)
4
5
×3.5+5.5×80%+0.8
=(3.5+5.5+1)×0.8
=10×0.8
=8;

(4)
13
18
÷(
5
6
+
2
3
×
3
8

=
13
18
÷(
5
6
+
1
4

=
13
18
÷
13
12

=
2
3


(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;

(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
3
4
34333444
=(
3
4
+
3
4
)×
2
7

=
3
2
×
2
7

=
3
7


(2)(
5
32
+
1
8
)×16
=
5
32
×16+
1
8
×16
=
5
2
+2
=
9
2


(3)
4
5
×3.5+5.5×80%+0.8
=(3.5+5.5+1)×0.8
=10×0.8
=8;

(4)
13
18
÷(
5
6
+
2
3
×
3
8

=
13
18
÷(
5
6
+
1
4

=
13
18
÷
13
12

=
2
3


(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;

(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
3
4
34333444+
3
4
)×
2
7

=
3
2
×
2
7

=
3
7


(2)(
5
32
+
1
8
)×16
=
5
32
×16+
1
8
×16
=
5
2
+2
=
9
2


(3)
4
5
×3.5+5.5×80%+0.8
=(3.5+5.5+1)×0.8
=10×0.8
=8;

(4)
13
18
÷(
5
6
+
2
3
×
3
8

=
13
18
÷(
5
6
+
1
4

=
13
18
÷
13
12

=
2
3


(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;

(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
3
4
34333444)×
2
7

=
3
2
×
2
7

=
3
7


(2)(
5
32
+
1
8
)×16
=
5
32
×16+
1
8
×16
=
5
2
+2
=
9
2


(3)
4
5
×3.5+5.5×80%+0.8
=(3.5+5.5+1)×0.8
=10×0.8
=8;

(4)
13
18
÷(
5
6
+
2
3
×
3
8

=
13
18
÷(
5
6
+
1
4

=
13
18
÷
13
12

=
2
3


(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;

(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
2
7
27222777
=
3
2
×
2
7

=
3
7


(2)(
5
32
+
1
8
)×16
=
5
32
×16+
1
8
×16
=
5
2
+2
=
9
2


(3)
4
5
×3.5+5.5×80%+0.8
=(3.5+5.5+1)×0.8
=10×0.8
=8;

(4)
13
18
÷(
5
6
+
2
3
×
3
8

=
13
18
÷(
5
6
+
1
4

=
13
18
÷
13
12

=
2
3


(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;

(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
3
2
32333222×
2
7

=
3
7


(2)(
5
32
+
1
8
)×16
=
5
32
×16+
1
8
×16
=
5
2
+2
=
9
2


(3)
4
5
×3.5+5.5×80%+0.8
=(3.5+5.5+1)×0.8
=10×0.8
=8;

(4)
13
18
÷(
5
6
+
2
3
×
3
8

=
13
18
÷(
5
6
+
1
4

=
13
18
÷
13
12

=
2
3


(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;

(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
2
7
27222777
=
3
7


(2)(
5
32
+
1
8
)×16
=
5
32
×16+
1
8
×16
=
5
2
+2
=
9
2


(3)
4
5
×3.5+5.5×80%+0.8
=(3.5+5.5+1)×0.8
=10×0.8
=8;

(4)
13
18
÷(
5
6
+
2
3
×
3
8

=
13
18
÷(
5
6
+
1
4

=
13
18
÷
13
12

=
2
3


(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;

(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
3
7
37333777;

(2)(
5
32
+
1
8
)×16
=
5
32
×16+
1
8
×16
=
5
2
+2
=
9
2


(3)
4
5
×3.5+5.5×80%+0.8
=(3.5+5.5+1)×0.8
=10×0.8
=8;

(4)
13
18
÷(
5
6
+
2
3
×
3
8

=
13
18
÷(
5
6
+
1
4

=
13
18
÷
13
12

=
2
3


(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;

(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
5
32
532555323232+
1
8
)×16
=
5
32
×16+
1
8
×16
=
5
2
+2
=
9
2


(3)
4
5
×3.5+5.5×80%+0.8
=(3.5+5.5+1)×0.8
=10×0.8
=8;

(4)
13
18
÷(
5
6
+
2
3
×
3
8

=
13
18
÷(
5
6
+
1
4

=
13
18
÷
13
12

=
2
3


(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;

(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
1
8
18111888)×16
=
5
32
×16+
1
8
×16
=
5
2
+2
=
9
2


(3)
4
5
×3.5+5.5×80%+0.8
=(3.5+5.5+1)×0.8
=10×0.8
=8;

(4)
13
18
÷(
5
6
+
2
3
×
3
8

=
13
18
÷(
5
6
+
1
4

=
13
18
÷
13
12

=
2
3


(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;

(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
5
32
532555323232×16+
1
8
×16
=
5
2
+2
=
9
2


(3)
4
5
×3.5+5.5×80%+0.8
=(3.5+5.5+1)×0.8
=10×0.8
=8;

(4)
13
18
÷(
5
6
+
2
3
×
3
8

=
13
18
÷(
5
6
+
1
4

=
13
18
÷
13
12

=
2
3


(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;

(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
1
8
18111888×16
=
5
2
+2
=
9
2


(3)
4
5
×3.5+5.5×80%+0.8
=(3.5+5.5+1)×0.8
=10×0.8
=8;

(4)
13
18
÷(
5
6
+
2
3
×
3
8

=
13
18
÷(
5
6
+
1
4

=
13
18
÷
13
12

=
2
3


(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;

(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
5
2
52555222+2
=
9
2


(3)
4
5
×3.5+5.5×80%+0.8
=(3.5+5.5+1)×0.8
=10×0.8
=8;

(4)
13
18
÷(
5
6
+
2
3
×
3
8

=
13
18
÷(
5
6
+
1
4

=
13
18
÷
13
12

=
2
3


(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;

(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
9
2
92999222;

(3)
4
5
×3.5+5.5×80%+0.8
=(3.5+5.5+1)×0.8
=10×0.8
=8;

(4)
13
18
÷(
5
6
+
2
3
×
3
8

=
13
18
÷(
5
6
+
1
4

=
13
18
÷
13
12

=
2
3


(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;

(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
4
5
45444555×3.5+5.5×80%+0.8
=(3.5+5.5+1)×0.8
=10×0.8
=8;

(4)
13
18
÷(
5
6
+
2
3
×
3
8

=
13
18
÷(
5
6
+
1
4

=
13
18
÷
13
12

=
2
3


(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;

(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
13
18
1318131313181818÷(
5
6
+
2
3
×
3
8

=
13
18
÷(
5
6
+
1
4

=
13
18
÷
13
12

=
2
3


(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;

(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
5
6
56555666+
2
3
×
3
8

=
13
18
÷(
5
6
+
1
4

=
13
18
÷
13
12

=
2
3


(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;

(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
2
3
23222333×
3
8

=
13
18
÷(
5
6
+
1
4

=
13
18
÷
13
12

=
2
3


(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;

(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
3
8
38333888)
=
13
18
÷(
5
6
+
1
4

=
13
18
÷
13
12

=
2
3


(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;

(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
13
18
1318131313181818÷(
5
6
+
1
4

=
13
18
÷
13
12

=
2
3


(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;

(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
5
6
56555666+
1
4

=
13
18
÷
13
12

=
2
3


(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;

(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
1
4
14111444)
=
13
18
÷
13
12

=
2
3


(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;

(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
13
18
1318131313181818÷
13
12

=
2
3


(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;

(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
13
12
1312131313121212
=
2
3


(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;

(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.
2
3
23222333;

(5)85×54÷18+745
=4590÷18+745
=255+745
=1000;

(6)0.4×[1.4-(2.4-2.25)]
=0.4×[1.4-0.15]
=0.4×1.25
=0.5.