问题 解答题
用简便方法计算.
329×101

54×98+46×98

98×125.
答案

(1)329×101,

=329×100+329×1,

=32900+329,

=33229;

(2)54×98+46×98,

=(54+46)×98,

=100×98,

=9800;

(3)98×125.

=(100-2)×125,

=100×125-2×125,

=12500-250,

=12250.

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