题目内容
| 脱式计算(能简便的要简便) (11-
| (84÷4-0.01)×(1-
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|
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|
|
(1)(11-
×
)÷15
=(11-1)÷15
=10÷15
=
;
(2)(84÷4-0.01)×(1-
)
=(21-0.01)×(1-
)
=20.99×
=15.7425;
(3)
÷
-
×
=
×
-
×
=(
-
)×
=1×
=
;
(4)
×0.25+0.375×
+
=
×0.25+0.375×0.25+0.25
=(
+0.375+1)×0.25
=2×0.25
=0.5;
(5)
÷[
×(1-
)]
=
÷[
×
]
=
÷
=
;
(6)
÷[(4.5-5%×70)÷
]
=
÷[(4.5-3.5)÷
]
=
÷[1÷
]
=
÷
=1.
| 2 |
| 3 |
| 3 |
| 2 |
=(11-1)÷15
=10÷15
=
| 2 |
| 3 |
(2)(84÷4-0.01)×(1-
| 1 |
| 4 |
=(21-0.01)×(1-
| 1 |
| 4 |
=20.99×
| 3 |
| 4 |
=15.7425;
(3)
| 5 |
| 3 |
| 4 |
| 5 |
| 5 |
| 4 |
| 2 |
| 3 |
=
| 5 |
| 3 |
| 5 |
| 4 |
| 5 |
| 4 |
| 2 |
| 3 |
=(
| 5 |
| 3 |
| 2 |
| 3 |
| 5 |
| 4 |
=1×
| 5 |
| 4 |
=
| 5 |
| 4 |
(4)
| 5 |
| 8 |
| 1 |
| 4 |
| 1 |
| 4 |
=
| 5 |
| 8 |
=(
| 5 |
| 8 |
=2×0.25
=0.5;
(5)
| 3 |
| 2 |
| 5 |
| 6 |
| 1 |
| 3 |
=
| 3 |
| 2 |
| 5 |
| 6 |
| 2 |
| 3 |
=
| 3 |
| 2 |
| 5 |
| 9 |
=
| 27 |
| 10 |
(6)
| 7 |
| 9 |
| 9 |
| 7 |
=
| 7 |
| 9 |
| 9 |
| 7 |
=
| 7 |
| 9 |
| 9 |
| 7 |
=
| 7 |
| 9 |
| 7 |
| 9 |
=1.
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