题目内容
5÷[(35%-
)×
]+
×2.75+0.125×
+12.5%
(362+548×361)÷(362×548-186)
×
+
×
+
×
+…+
×
.
| 1 |
| 12 |
| 3 |
| 4 |
| 1 |
| 3 |
| 1 |
| 8 |
| 17 |
| 4 |
(362+548×361)÷(362×548-186)
| 1 |
| 1 |
| 1 |
| 4 |
| 1 |
| 4 |
| 1 |
| 7 |
| 1 |
| 7 |
| 1 |
| 10 |
| 1 |
| 97 |
| 1 |
| 100 |
(1)5÷[(35%-
)×
]+
,
=5÷[(
-
)×
]+
,
=5÷[(
-
)×
]+
,
=5÷[
×
]+
,
=5÷
+
,
=25+
,
=25
;
(2)
×2.75+0.125×
+12.5%,
=0.125×2.75+0.125×4.25+0.125,
=(2.75+4.25+1)×0.125,
=8×0.125,
=1;
(3)(362+548×361)÷(362×548-186),
=[362+548×(362-1)]÷(362×548-186),
=[362-548+548×362]÷(362×548-186),
=(362×548-186)÷(362×548-186),
=1;
(4)
×
+
×
+
×
+…+
×
,
=
×(1-
)+
×(
-
)+
×(
-
)+…+
×(
-
),
=
×(1-
+
-
+
-
+…+
-
),
=
×(1-
),
=
.
| 1 |
| 12 |
| 3 |
| 4 |
| 1 |
| 3 |
=5÷[(
| 7 |
| 20 |
| 1 |
| 12 |
| 3 |
| 4 |
| 1 |
| 3 |
=5÷[(
| 21 |
| 60 |
| 5 |
| 60 |
| 3 |
| 4 |
| 1 |
| 3 |
=5÷[
| 16 |
| 60 |
| 3 |
| 4 |
| 1 |
| 3 |
=5÷
| 1 |
| 5 |
| 1 |
| 3 |
=25+
| 1 |
| 3 |
=25
| 1 |
| 3 |
(2)
| 1 |
| 8 |
| 17 |
| 4 |
=0.125×2.75+0.125×4.25+0.125,
=(2.75+4.25+1)×0.125,
=8×0.125,
=1;
(3)(362+548×361)÷(362×548-186),
=[362+548×(362-1)]÷(362×548-186),
=[362-548+548×362]÷(362×548-186),
=(362×548-186)÷(362×548-186),
=1;
(4)
| 1 |
| 1 |
| 1 |
| 4 |
| 1 |
| 4 |
| 1 |
| 7 |
| 1 |
| 7 |
| 1 |
| 10 |
| 1 |
| 97 |
| 1 |
| 100 |
=
| 1 |
| 3 |
| 1 |
| 4 |
| 1 |
| 3 |
| 1 |
| 4 |
| 1 |
| 7 |
| 1 |
| 3 |
| 1 |
| 7 |
| 1 |
| 10 |
| 1 |
| 3 |
| 1 |
| 97 |
| 1 |
| 100 |
=
| 1 |
| 3 |
| 1 |
| 4 |
| 1 |
| 4 |
| 1 |
| 7 |
| 1 |
| 7 |
| 1 |
| 10 |
| 1 |
| 97 |
| 1 |
| 100 |
=
| 1 |
| 3 |
| 1 |
| 100 |
=
| 33 |
| 100 |
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