问题 解答题

1.25×6.78+25×3.47+125×0.0382.

答案

1.25×6.78+25×3.47+125×0.0382,

=1.25×6.78+1.25×20×3.47+1.25×100×0.0382,

=1.25×6.78+1.25×69.4+1.25×3.82,

=1.25×(6.78+69.4+3.82),

=1.25×80,

=100.

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