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(2008•高邮市)用简便方法计算(1)6.35-57+4.65-27=(2)813÷7+17×513=(3)34×0.25×43×4=
题目详情
(2008•高邮市)用简便方法计算
(1)6.35-
+4.65-
=
(2)
÷7+
×
=
(3)
×0.25×
×4=
+4.65-
=
(2)
÷7+
×
=
(3)
×0.25×
×4=
5 5 7 7
=
(2)
÷7+
×
=
(3)
×0.25×
×4=
2 2 7 7
÷7+
×
=
(3)
×0.25×
×4=
8 8 13 13
×
=
(3)
×0.25×
×4=
1 1 7 7
5 5 13 13
×0.25×
×4=
3 3 4 4
×4=
4 4 3 3
(1)6.35-
5 |
7 |
2 |
7 |
(2)
8 |
13 |
1 |
7 |
5 |
13 |
(3)
3 |
4 |
4 |
3 |
5 |
7 |
2 |
7 |
(2)
8 |
13 |
1 |
7 |
5 |
13 |
(3)
3 |
4 |
4 |
3 |
5 |
7 |
2 |
7 |
(2)
8 |
13 |
1 |
7 |
5 |
13 |
(3)
3 |
4 |
4 |
3 |
2 |
7 |
8 |
13 |
1 |
7 |
5 |
13 |
(3)
3 |
4 |
4 |
3 |
8 |
13 |
1 |
7 |
5 |
13 |
(3)
3 |
4 |
4 |
3 |
1 |
7 |
5 |
13 |
3 |
4 |
4 |
3 |
3 |
4 |
4 |
3 |
4 |
3 |
▼优质解答
答案和解析
(1)6.35-
+4.65-
=6.35+4.65-(
+
),
=11-1,
=10;
(2)
÷7+
×
=
=
×
+
×
,
=(
+
)×
,
=1×
,
=
;
(3)
×0.25×
×4
=(
×
)×(0.25×4),
=1×1,
=1.
5 5 57 7 7+4.65-
=6.35+4.65-(
+
),
=11-1,
=10;
(2)
÷7+
×
=
=
×
+
×
,
=(
+
)×
,
=1×
,
=
;
(3)
×0.25×
×4
=(
×
)×(0.25×4),
=1×1,
=1.
2 2 27 7 7
=6.35+4.65-(
+
),
=11-1,
=10;
(2)
÷7+
×
=
=
×
+
×
,
=(
+
)×
,
=1×
,
=
;
(3)
×0.25×
×4
=(
×
)×(0.25×4),
=1×1,
=1.
5 5 57 7 7+
2 2 27 7 7),
=11-1,
=10;
(2)
÷7+
×
=
=
×
+
×
,
=(
+
)×
,
=1×
,
=
;
(3)
×0.25×
×4
=(
×
)×(0.25×4),
=1×1,
=1.
8 8 813 13 13÷7+
×
=
=
×
+
×
,
=(
+
)×
,
=1×
,
=
;
(3)
×0.25×
×4
=(
×
)×(0.25×4),
=1×1,
=1.
1 1 17 7 7×
5 5 513 13 13=
=
×
+
×
,
=(
+
)×
,
=1×
,
=
;
(3)
×0.25×
×4
=(
×
)×(0.25×4),
=1×1,
=1.
8 8 813 13 13×
1 1 17 7 7+
×
,
=(
+
)×
,
=1×
,
=
;
(3)
×0.25×
×4
=(
×
)×(0.25×4),
=1×1,
=1.
1 1 17 7 7×
,
=(
+
)×
,
=1×
,
=
;
(3)
×0.25×
×4
=(
×
)×(0.25×4),
=1×1,
=1.
5 5 513 13 13,
=(
+
)×
,
=1×
,
=
;
(3)
×0.25×
×4
=(
×
)×(0.25×4),
=1×1,
=1.
8 8 813 13 13+
5 5 513 13 13)×
,
=1×
,
=
;
(3)
×0.25×
×4
=(
×
)×(0.25×4),
=1×1,
=1.
1 1 17 7 7,
=1×
,
=
;
(3)
×0.25×
×4
=(
×
)×(0.25×4),
=1×1,
=1.
1 1 17 7 7,
=
;
(3)
×0.25×
×4
=(
×
)×(0.25×4),
=1×1,
=1.
1 1 17 7 7;
(3)
×0.25×
×4
=(
×
)×(0.25×4),
=1×1,
=1.
3 3 34 4 4×0.25×
×4
=(
×
)×(0.25×4),
=1×1,
=1.
4 4 43 3 3×4
=(
×
)×(0.25×4),
=1×1,
=1.
3 3 34 4 4×
4 4 43 3 3)×(0.25×4),
=1×1,
=1.
5 |
7 |
2 |
7 |
=6.35+4.65-(
5 |
7 |
2 |
7 |
=11-1,
=10;
(2)
8 |
13 |
1 |
7 |
5 |
13 |
=
8 |
13 |
1 |
7 |
1 |
7 |
5 |
13 |
=(
8 |
13 |
5 |
13 |
1 |
7 |
=1×
1 |
7 |
=
1 |
7 |
(3)
3 |
4 |
4 |
3 |
=(
3 |
4 |
4 |
3 |
=1×1,
=1.
5 |
7 |
2 |
7 |
=6.35+4.65-(
5 |
7 |
2 |
7 |
=11-1,
=10;
(2)
8 |
13 |
1 |
7 |
5 |
13 |
=
8 |
13 |
1 |
7 |
1 |
7 |
5 |
13 |
=(
8 |
13 |
5 |
13 |
1 |
7 |
=1×
1 |
7 |
=
1 |
7 |
(3)
3 |
4 |
4 |
3 |
=(
3 |
4 |
4 |
3 |
=1×1,
=1.
2 |
7 |
=6.35+4.65-(
5 |
7 |
2 |
7 |
=11-1,
=10;
(2)
8 |
13 |
1 |
7 |
5 |
13 |
=
8 |
13 |
1 |
7 |
1 |
7 |
5 |
13 |
=(
8 |
13 |
5 |
13 |
1 |
7 |
=1×
1 |
7 |
=
1 |
7 |
(3)
3 |
4 |
4 |
3 |
=(
3 |
4 |
4 |
3 |
=1×1,
=1.
5 |
7 |
2 |
7 |
=11-1,
=10;
(2)
8 |
13 |
1 |
7 |
5 |
13 |
=
8 |
13 |
1 |
7 |
1 |
7 |
5 |
13 |
=(
8 |
13 |
5 |
13 |
1 |
7 |
=1×
1 |
7 |
=
1 |
7 |
(3)
3 |
4 |
4 |
3 |
=(
3 |
4 |
4 |
3 |
=1×1,
=1.
8 |
13 |
1 |
7 |
5 |
13 |
=
8 |
13 |
1 |
7 |
1 |
7 |
5 |
13 |
=(
8 |
13 |
5 |
13 |
1 |
7 |
=1×
1 |
7 |
=
1 |
7 |
(3)
3 |
4 |
4 |
3 |
=(
3 |
4 |
4 |
3 |
=1×1,
=1.
1 |
7 |
5 |
13 |
=
8 |
13 |
1 |
7 |
1 |
7 |
5 |
13 |
=(
8 |
13 |
5 |
13 |
1 |
7 |
=1×
1 |
7 |
=
1 |
7 |
(3)
3 |
4 |
4 |
3 |
=(
3 |
4 |
4 |
3 |
=1×1,
=1.
8 |
13 |
1 |
7 |
1 |
7 |
5 |
13 |
=(
8 |
13 |
5 |
13 |
1 |
7 |
=1×
1 |
7 |
=
1 |
7 |
(3)
3 |
4 |
4 |
3 |
=(
3 |
4 |
4 |
3 |
=1×1,
=1.
1 |
7 |
5 |
13 |
=(
8 |
13 |
5 |
13 |
1 |
7 |
=1×
1 |
7 |
=
1 |
7 |
(3)
3 |
4 |
4 |
3 |
=(
3 |
4 |
4 |
3 |
=1×1,
=1.
5 |
13 |
=(
8 |
13 |
5 |
13 |
1 |
7 |
=1×
1 |
7 |
=
1 |
7 |
(3)
3 |
4 |
4 |
3 |
=(
3 |
4 |
4 |
3 |
=1×1,
=1.
8 |
13 |
5 |
13 |
1 |
7 |
=1×
1 |
7 |
=
1 |
7 |
(3)
3 |
4 |
4 |
3 |
=(
3 |
4 |
4 |
3 |
=1×1,
=1.
1 |
7 |
=1×
1 |
7 |
=
1 |
7 |
(3)
3 |
4 |
4 |
3 |
=(
3 |
4 |
4 |
3 |
=1×1,
=1.
1 |
7 |
=
1 |
7 |
(3)
3 |
4 |
4 |
3 |
=(
3 |
4 |
4 |
3 |
=1×1,
=1.
1 |
7 |
(3)
3 |
4 |
4 |
3 |
=(
3 |
4 |
4 |
3 |
=1×1,
=1.
3 |
4 |
4 |
3 |
=(
3 |
4 |
4 |
3 |
=1×1,
=1.
4 |
3 |
=(
3 |
4 |
4 |
3 |
=1×1,
=1.
3 |
4 |
4 |
3 |
=1×1,
=1.
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