问题 解答题
2÷[(
1
27
-
1
36
)×9]×6
1.25×67.875+0.125×6787.5+125×0.53375.
答案

(1)2÷[(

1
27
-
1
36
)×9]×6,

=2÷[

1
27
×9-
1
36
×9]×6,

=2÷[

1
3
-
1
4
]×6,

=2÷

1
12
×6,

=2×12×6,

=144;

(2)1.25×67.875+0.125×6787.5+125×0.53375,

=125×0.67875+125×6.7875+125×0.53375,

=125×(0.67875+6.7875+0.53375),

=125×8,

=1000.

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