问题 解答题
用自己的方法计算:
2503-497

125×24

1200÷25

108×9+108.
答案

(1)2503-497,

=2503-500+3,

=2003-3,

=2006;

(2)125×24,

=125×8×3,

=1000×3,

=3000;

(3)1200÷25,

=(1200×4)÷(25×4),

=4800÷100,

=48;

(4)108×9+108,

=108×(9+1),

=108×10,

=1080.

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