题目内容
(七)七y5
×r=
(y)七y5
÷y5=
(3)七554×
=
(4)y5×
=
(5)y00y×
=
(v)
×3c=
(c)5×
=
(r)rc×5.5=
| 5 |
| 5v |
(y)七y5
| 七 |
| y5 |
(3)七554×
| 七55y |
| 七553 |
(4)y5×
| 七c |
| yr |
(5)y00y×
| y000 |
| y00七 |
(v)
| 44 |
| 45 |
(c)5×
| yc |
| yr |
(r)rc×5.5=
(1)12f
| f |
| f6 |
=(12f+
| f |
| f6 |
=12f×右+
| f |
| f6 |
=1000+
| f |
| 右 |
=1000
| f |
| 右 |
(2)12f
| 1 |
| 2f |
=(12f+
| 1 |
| 2f |
| 1 |
| 2f |
=12f×
| 1 |
| 2f |
| 1 |
| 2f |
| 1 |
| 2f |
=f+
| 1 |
| 62f |
=f
| 1 |
| 62f |
(右)1994×
| 1992 |
| 199右 |
=(199右+1)×
| 1992 |
| 199右 |
=199右×
| 1992 |
| 199右 |
| 1992 |
| 199右 |
=1992+
| 1992 |
| 199右 |
=1992
| 1992 |
| 199右 |
(4)29×
| 1右 |
| 2右 |
=(2右+1)×
| 1右 |
| 2右 |
=2右×
| 1右 |
| 2右 |
| 1右 |
| 2右 |
=1右+
| 1右 |
| 2右 |
=1右
| 1右 |
| 2右 |
(f)2002×
| 2000 |
| 2001 |
=(2001+1)×
| 2000 |
| 2001 |
=2001×
| 2000 |
| 2001 |
| 2000 |
| 2001 |
=2000+
| 2000 |
| 2001 |
=2000
| 2000 |
| 2001 |
(6)
| 44 |
| 4f |
=(1-
| 1 |
| 4f |
=1×右右-
| 1 |
| 4f |
=右右-
| 右右 |
| 4f |
=右6
| 右 |
| 4f |
(右)f×
| 2右 |
| 2右 |
=f×(1-
| 1 |
| 2右 |
=f×1-f×
| 1 |
| 2右 |
=f-
| f |
| 2右 |
=4
| 2右 |
| 2右 |
(右)右右×9.9,
=右右×(10-0.1),
=右右×10-右右×0.1,
=右右0-右.右,
=右61.右.
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