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计算(能简算的要简算)(1)17×(1927×7)(2)72×59-14(3)4-512×412(4)13×56+13×12.
题目详情
计算(能简算的要简算)
(1)
×(
×7)
(2)72×
-
(3)4-
×
(4)
×
+
×
.
×(
×7)
(2)72×
-
(3)4-
×
(4)
×
+
×
.
1 1 7 7
×7)
(2)72×
-
(3)4-
×
(4)
×
+
×
.
19 19 27 27
-
(3)4-
×
(4)
×
+
×
.
5 5 9 9
(3)4-
×
(4)
×
+
×
.
1 1 4 4
×
(4)
×
+
×
.
5 5 12 12
(4)
×
+
×
.
4 4 12 12
×
+
×
.
1 1 3 3
+
×
.
5 5 6 6
×
.
1 1 3 3
.
1 1 2 2
(1)
1 |
7 |
19 |
27 |
(2)72×
5 |
9 |
1 |
4 |
(3)4-
5 |
12 |
4 |
12 |
(4)
1 |
3 |
5 |
6 |
1 |
3 |
1 |
2 |
1 |
7 |
19 |
27 |
(2)72×
5 |
9 |
1 |
4 |
(3)4-
5 |
12 |
4 |
12 |
(4)
1 |
3 |
5 |
6 |
1 |
3 |
1 |
2 |
1 |
7 |
19 |
27 |
(2)72×
5 |
9 |
1 |
4 |
(3)4-
5 |
12 |
4 |
12 |
(4)
1 |
3 |
5 |
6 |
1 |
3 |
1 |
2 |
19 |
27 |
5 |
9 |
1 |
4 |
(3)4-
5 |
12 |
4 |
12 |
(4)
1 |
3 |
5 |
6 |
1 |
3 |
1 |
2 |
5 |
9 |
1 |
4 |
(3)4-
5 |
12 |
4 |
12 |
(4)
1 |
3 |
5 |
6 |
1 |
3 |
1 |
2 |
1 |
4 |
5 |
12 |
4 |
12 |
(4)
1 |
3 |
5 |
6 |
1 |
3 |
1 |
2 |
5 |
12 |
4 |
12 |
(4)
1 |
3 |
5 |
6 |
1 |
3 |
1 |
2 |
4 |
12 |
1 |
3 |
5 |
6 |
1 |
3 |
1 |
2 |
1 |
3 |
5 |
6 |
1 |
3 |
1 |
2 |
5 |
6 |
1 |
3 |
1 |
2 |
1 |
3 |
1 |
2 |
1 |
2 |
▼优质解答
答案和解析
(1)
×(
×7),
=(
×7)×
,
=
;
(2)72×
-
,
=40-
,
=39
;
(3)4-
×
,
=4-
,
=3
;
(4)
×
+
×
,
=
×(
+
),
=
×
,
=
.
1 1 17 7 7×(
×7),
=(
×7)×
,
=
;
(2)72×
-
,
=40-
,
=39
;
(3)4-
×
,
=4-
,
=3
;
(4)
×
+
×
,
=
×(
+
),
=
×
,
=
.
19 19 1927 27 27×7),
=(
×7)×
,
=
;
(2)72×
-
,
=40-
,
=39
;
(3)4-
×
,
=4-
,
=3
;
(4)
×
+
×
,
=
×(
+
),
=
×
,
=
.
1 1 17 7 7×7)×
,
=
;
(2)72×
-
,
=40-
,
=39
;
(3)4-
×
,
=4-
,
=3
;
(4)
×
+
×
,
=
×(
+
),
=
×
,
=
.
19 19 1927 27 27,
=
;
(2)72×
-
,
=40-
,
=39
;
(3)4-
×
,
=4-
,
=3
;
(4)
×
+
×
,
=
×(
+
),
=
×
,
=
.
19 19 1927 27 27;
(2)72×
-
,
=40-
,
=39
;
(3)4-
×
,
=4-
,
=3
;
(4)
×
+
×
,
=
×(
+
),
=
×
,
=
.
5 5 59 9 9-
,
=40-
,
=39
;
(3)4-
×
,
=4-
,
=3
;
(4)
×
+
×
,
=
×(
+
),
=
×
,
=
.
1 1 14 4 4,
=40-
,
=39
;
(3)4-
×
,
=4-
,
=3
;
(4)
×
+
×
,
=
×(
+
),
=
×
,
=
.
1 1 14 4 4,
=39
;
(3)4-
×
,
=4-
,
=3
;
(4)
×
+
×
,
=
×(
+
),
=
×
,
=
.
3 3 34 4 4;
(3)4-
×
,
=4-
,
=3
;
(4)
×
+
×
,
=
×(
+
),
=
×
,
=
.
5 5 512 12 12×
,
=4-
,
=3
;
(4)
×
+
×
,
=
×(
+
),
=
×
,
=
.
4 4 412 12 12,
=4-
,
=3
;
(4)
×
+
×
,
=
×(
+
),
=
×
,
=
.
5 5 536 36 36,
=3
;
(4)
×
+
×
,
=
×(
+
),
=
×
,
=
.
31 31 3136 36 36;
(4)
×
+
×
,
=
×(
+
),
=
×
,
=
.
1 1 13 3 3×
+
×
,
=
×(
+
),
=
×
,
=
.
5 5 56 6 6+
×
,
=
×(
+
),
=
×
,
=
.
1 1 13 3 3×
,
=
×(
+
),
=
×
,
=
.
1 1 12 2 2,
=
×(
+
),
=
×
,
=
.
1 1 13 3 3×(
+
),
=
×
,
=
.
5 5 56 6 6+
),
=
×
,
=
.
1 1 12 2 2),
=
×
,
=
.
1 1 13 3 3×
,
=
.
4 4 43 3 3,
=
.
4 4 49 9 9.
1 |
7 |
19 |
27 |
=(
1 |
7 |
19 |
27 |
=
19 |
27 |
(2)72×
5 |
9 |
1 |
4 |
=40-
1 |
4 |
=39
3 |
4 |
(3)4-
5 |
12 |
4 |
12 |
=4-
5 |
36 |
=3
31 |
36 |
(4)
1 |
3 |
5 |
6 |
1 |
3 |
1 |
2 |
=
1 |
3 |
5 |
6 |
1 |
2 |
=
1 |
3 |
4 |
3 |
=
4 |
9 |
1 |
7 |
19 |
27 |
=(
1 |
7 |
19 |
27 |
=
19 |
27 |
(2)72×
5 |
9 |
1 |
4 |
=40-
1 |
4 |
=39
3 |
4 |
(3)4-
5 |
12 |
4 |
12 |
=4-
5 |
36 |
=3
31 |
36 |
(4)
1 |
3 |
5 |
6 |
1 |
3 |
1 |
2 |
=
1 |
3 |
5 |
6 |
1 |
2 |
=
1 |
3 |
4 |
3 |
=
4 |
9 |
19 |
27 |
=(
1 |
7 |
19 |
27 |
=
19 |
27 |
(2)72×
5 |
9 |
1 |
4 |
=40-
1 |
4 |
=39
3 |
4 |
(3)4-
5 |
12 |
4 |
12 |
=4-
5 |
36 |
=3
31 |
36 |
(4)
1 |
3 |
5 |
6 |
1 |
3 |
1 |
2 |
=
1 |
3 |
5 |
6 |
1 |
2 |
=
1 |
3 |
4 |
3 |
=
4 |
9 |
1 |
7 |
19 |
27 |
=
19 |
27 |
(2)72×
5 |
9 |
1 |
4 |
=40-
1 |
4 |
=39
3 |
4 |
(3)4-
5 |
12 |
4 |
12 |
=4-
5 |
36 |
=3
31 |
36 |
(4)
1 |
3 |
5 |
6 |
1 |
3 |
1 |
2 |
=
1 |
3 |
5 |
6 |
1 |
2 |
=
1 |
3 |
4 |
3 |
=
4 |
9 |
19 |
27 |
=
19 |
27 |
(2)72×
5 |
9 |
1 |
4 |
=40-
1 |
4 |
=39
3 |
4 |
(3)4-
5 |
12 |
4 |
12 |
=4-
5 |
36 |
=3
31 |
36 |
(4)
1 |
3 |
5 |
6 |
1 |
3 |
1 |
2 |
=
1 |
3 |
5 |
6 |
1 |
2 |
=
1 |
3 |
4 |
3 |
=
4 |
9 |
19 |
27 |
(2)72×
5 |
9 |
1 |
4 |
=40-
1 |
4 |
=39
3 |
4 |
(3)4-
5 |
12 |
4 |
12 |
=4-
5 |
36 |
=3
31 |
36 |
(4)
1 |
3 |
5 |
6 |
1 |
3 |
1 |
2 |
=
1 |
3 |
5 |
6 |
1 |
2 |
=
1 |
3 |
4 |
3 |
=
4 |
9 |
5 |
9 |
1 |
4 |
=40-
1 |
4 |
=39
3 |
4 |
(3)4-
5 |
12 |
4 |
12 |
=4-
5 |
36 |
=3
31 |
36 |
(4)
1 |
3 |
5 |
6 |
1 |
3 |
1 |
2 |
=
1 |
3 |
5 |
6 |
1 |
2 |
=
1 |
3 |
4 |
3 |
=
4 |
9 |
1 |
4 |
=40-
1 |
4 |
=39
3 |
4 |
(3)4-
5 |
12 |
4 |
12 |
=4-
5 |
36 |
=3
31 |
36 |
(4)
1 |
3 |
5 |
6 |
1 |
3 |
1 |
2 |
=
1 |
3 |
5 |
6 |
1 |
2 |
=
1 |
3 |
4 |
3 |
=
4 |
9 |
1 |
4 |
=39
3 |
4 |
(3)4-
5 |
12 |
4 |
12 |
=4-
5 |
36 |
=3
31 |
36 |
(4)
1 |
3 |
5 |
6 |
1 |
3 |
1 |
2 |
=
1 |
3 |
5 |
6 |
1 |
2 |
=
1 |
3 |
4 |
3 |
=
4 |
9 |
3 |
4 |
(3)4-
5 |
12 |
4 |
12 |
=4-
5 |
36 |
=3
31 |
36 |
(4)
1 |
3 |
5 |
6 |
1 |
3 |
1 |
2 |
=
1 |
3 |
5 |
6 |
1 |
2 |
=
1 |
3 |
4 |
3 |
=
4 |
9 |
5 |
12 |
4 |
12 |
=4-
5 |
36 |
=3
31 |
36 |
(4)
1 |
3 |
5 |
6 |
1 |
3 |
1 |
2 |
=
1 |
3 |
5 |
6 |
1 |
2 |
=
1 |
3 |
4 |
3 |
=
4 |
9 |
4 |
12 |
=4-
5 |
36 |
=3
31 |
36 |
(4)
1 |
3 |
5 |
6 |
1 |
3 |
1 |
2 |
=
1 |
3 |
5 |
6 |
1 |
2 |
=
1 |
3 |
4 |
3 |
=
4 |
9 |
5 |
36 |
=3
31 |
36 |
(4)
1 |
3 |
5 |
6 |
1 |
3 |
1 |
2 |
=
1 |
3 |
5 |
6 |
1 |
2 |
=
1 |
3 |
4 |
3 |
=
4 |
9 |
31 |
36 |
(4)
1 |
3 |
5 |
6 |
1 |
3 |
1 |
2 |
=
1 |
3 |
5 |
6 |
1 |
2 |
=
1 |
3 |
4 |
3 |
=
4 |
9 |
1 |
3 |
5 |
6 |
1 |
3 |
1 |
2 |
=
1 |
3 |
5 |
6 |
1 |
2 |
=
1 |
3 |
4 |
3 |
=
4 |
9 |
5 |
6 |
1 |
3 |
1 |
2 |
=
1 |
3 |
5 |
6 |
1 |
2 |
=
1 |
3 |
4 |
3 |
=
4 |
9 |
1 |
3 |
1 |
2 |
=
1 |
3 |
5 |
6 |
1 |
2 |
=
1 |
3 |
4 |
3 |
=
4 |
9 |
1 |
2 |
=
1 |
3 |
5 |
6 |
1 |
2 |
=
1 |
3 |
4 |
3 |
=
4 |
9 |
1 |
3 |
5 |
6 |
1 |
2 |
=
1 |
3 |
4 |
3 |
=
4 |
9 |
5 |
6 |
1 |
2 |
=
1 |
3 |
4 |
3 |
=
4 |
9 |
1 |
2 |
=
1 |
3 |
4 |
3 |
=
4 |
9 |
1 |
3 |
4 |
3 |
=
4 |
9 |
4 |
3 |
=
4 |
9 |
4 |
9 |
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