问题 填空题

计算:436×435435436-435×436436435=______.

答案

436×435435436-435×436436435,

=436×435435436-(436-1)×436436435,

=436×435435436-436×436436435+436436435,

=436×(435435436-436436435)+436436435,

=436×(-1000999)+436436435,

=436436435-436435564,

=871.

故答案为:871.

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