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计算下列各题,能简算的要简算3415×(57-314÷34);709×99+709;314×(538-5.375).
题目详情
计算下列各题,能简算的要简算
3
×(
-
÷
); 709×99+709; 3
×(5
-5.375).
×(
-
÷
); 709×99+709; 3
×(5
-5.375).
4 4 15 15
-
÷
); 709×99+709; 3
×(5
-5.375).
5 5 7 7
÷
); 709×99+709; 3
×(5
-5.375).
3 3 14 14
); 709×99+709; 3
×(5
-5.375).
3 3 4 4
×(5
-5.375).
1 1 4 4
-5.375).
3 3 8 8
3
4 |
15 |
5 |
7 |
3 |
14 |
3 |
4 |
1 |
4 |
3 |
8 |
4 |
15 |
5 |
7 |
3 |
14 |
3 |
4 |
1 |
4 |
3 |
8 |
4 |
15 |
5 |
7 |
3 |
14 |
3 |
4 |
1 |
4 |
3 |
8 |
5 |
7 |
3 |
14 |
3 |
4 |
1 |
4 |
3 |
8 |
3 |
14 |
3 |
4 |
1 |
4 |
3 |
8 |
3 |
4 |
1 |
4 |
3 |
8 |
1 |
4 |
3 |
8 |
3 |
8 |
▼优质解答
答案和解析
(1)3
×(
-
÷
)
=3
×(
-
)
=3
×
=
×
=
;
(2)709×99+709
=709×(99+1)
=709×100
=70900;
(3)3
×(5
-5.375)
=3
×0
=0.
4 4 415 15 15×(
-
÷
)
=3
×(
-
)
=3
×
=
×
=
;
(2)709×99+709
=709×(99+1)
=709×100
=70900;
(3)3
×(5
-5.375)
=3
×0
=0.
5 5 57 7 7-
÷
)
=3
×(
-
)
=3
×
=
×
=
;
(2)709×99+709
=709×(99+1)
=709×100
=70900;
(3)3
×(5
-5.375)
=3
×0
=0.
3 3 314 14 14÷
)
=3
×(
-
)
=3
×
=
×
=
;
(2)709×99+709
=709×(99+1)
=709×100
=70900;
(3)3
×(5
-5.375)
=3
×0
=0.
3 3 34 4 4)
=3
×(
-
)
=3
×
=
×
=
;
(2)709×99+709
=709×(99+1)
=709×100
=70900;
(3)3
×(5
-5.375)
=3
×0
=0.
4 4 415 15 15×(
-
)
=3
×
=
×
=
;
(2)709×99+709
=709×(99+1)
=709×100
=70900;
(3)3
×(5
-5.375)
=3
×0
=0.
5 5 57 7 7-
)
=3
×
=
×
=
;
(2)709×99+709
=709×(99+1)
=709×100
=70900;
(3)3
×(5
-5.375)
=3
×0
=0.
2 2 27 7 7)
=3
×
=
×
=
;
(2)709×99+709
=709×(99+1)
=709×100
=70900;
(3)3
×(5
-5.375)
=3
×0
=0.
4 4 415 15 15×
=
×
=
;
(2)709×99+709
=709×(99+1)
=709×100
=70900;
(3)3
×(5
-5.375)
=3
×0
=0.
3 3 37 7 7
=
×
=
;
(2)709×99+709
=709×(99+1)
=709×100
=70900;
(3)3
×(5
-5.375)
=3
×0
=0.
49 49 4915 15 15×
=
;
(2)709×99+709
=709×(99+1)
=709×100
=70900;
(3)3
×(5
-5.375)
=3
×0
=0.
3 3 37 7 7
=
;
(2)709×99+709
=709×(99+1)
=709×100
=70900;
(3)3
×(5
-5.375)
=3
×0
=0.
7 7 75 5 5;
(2)709×99+709
=709×(99+1)
=709×100
=70900;
(3)3
×(5
-5.375)
=3
×0
=0.
1 1 14 4 4×(5
-5.375)
=3
×0
=0.
3 3 38 8 8-5.375)
=3
×0
=0.
1 1 14 4 4×0
=0.
4 |
15 |
5 |
7 |
3 |
14 |
3 |
4 |
=3
4 |
15 |
5 |
7 |
2 |
7 |
=3
4 |
15 |
3 |
7 |
=
49 |
15 |
3 |
7 |
=
7 |
5 |
(2)709×99+709
=709×(99+1)
=709×100
=70900;
(3)3
1 |
4 |
3 |
8 |
=3
1 |
4 |
=0.
4 |
15 |
5 |
7 |
3 |
14 |
3 |
4 |
=3
4 |
15 |
5 |
7 |
2 |
7 |
=3
4 |
15 |
3 |
7 |
=
49 |
15 |
3 |
7 |
=
7 |
5 |
(2)709×99+709
=709×(99+1)
=709×100
=70900;
(3)3
1 |
4 |
3 |
8 |
=3
1 |
4 |
=0.
5 |
7 |
3 |
14 |
3 |
4 |
=3
4 |
15 |
5 |
7 |
2 |
7 |
=3
4 |
15 |
3 |
7 |
=
49 |
15 |
3 |
7 |
=
7 |
5 |
(2)709×99+709
=709×(99+1)
=709×100
=70900;
(3)3
1 |
4 |
3 |
8 |
=3
1 |
4 |
=0.
3 |
14 |
3 |
4 |
=3
4 |
15 |
5 |
7 |
2 |
7 |
=3
4 |
15 |
3 |
7 |
=
49 |
15 |
3 |
7 |
=
7 |
5 |
(2)709×99+709
=709×(99+1)
=709×100
=70900;
(3)3
1 |
4 |
3 |
8 |
=3
1 |
4 |
=0.
3 |
4 |
=3
4 |
15 |
5 |
7 |
2 |
7 |
=3
4 |
15 |
3 |
7 |
=
49 |
15 |
3 |
7 |
=
7 |
5 |
(2)709×99+709
=709×(99+1)
=709×100
=70900;
(3)3
1 |
4 |
3 |
8 |
=3
1 |
4 |
=0.
4 |
15 |
5 |
7 |
2 |
7 |
=3
4 |
15 |
3 |
7 |
=
49 |
15 |
3 |
7 |
=
7 |
5 |
(2)709×99+709
=709×(99+1)
=709×100
=70900;
(3)3
1 |
4 |
3 |
8 |
=3
1 |
4 |
=0.
5 |
7 |
2 |
7 |
=3
4 |
15 |
3 |
7 |
=
49 |
15 |
3 |
7 |
=
7 |
5 |
(2)709×99+709
=709×(99+1)
=709×100
=70900;
(3)3
1 |
4 |
3 |
8 |
=3
1 |
4 |
=0.
2 |
7 |
=3
4 |
15 |
3 |
7 |
=
49 |
15 |
3 |
7 |
=
7 |
5 |
(2)709×99+709
=709×(99+1)
=709×100
=70900;
(3)3
1 |
4 |
3 |
8 |
=3
1 |
4 |
=0.
4 |
15 |
3 |
7 |
=
49 |
15 |
3 |
7 |
=
7 |
5 |
(2)709×99+709
=709×(99+1)
=709×100
=70900;
(3)3
1 |
4 |
3 |
8 |
=3
1 |
4 |
=0.
3 |
7 |
=
49 |
15 |
3 |
7 |
=
7 |
5 |
(2)709×99+709
=709×(99+1)
=709×100
=70900;
(3)3
1 |
4 |
3 |
8 |
=3
1 |
4 |
=0.
49 |
15 |
3 |
7 |
=
7 |
5 |
(2)709×99+709
=709×(99+1)
=709×100
=70900;
(3)3
1 |
4 |
3 |
8 |
=3
1 |
4 |
=0.
3 |
7 |
=
7 |
5 |
(2)709×99+709
=709×(99+1)
=709×100
=70900;
(3)3
1 |
4 |
3 |
8 |
=3
1 |
4 |
=0.
7 |
5 |
(2)709×99+709
=709×(99+1)
=709×100
=70900;
(3)3
1 |
4 |
3 |
8 |
=3
1 |
4 |
=0.
1 |
4 |
3 |
8 |
=3
1 |
4 |
=0.
3 |
8 |
=3
1 |
4 |
=0.
1 |
4 |
=0.
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