问题 解答题
用简便方法计算
8000÷125÷8102×43325+143+75+57278-79-21.
答案

1)8000÷125÷8,

=8000÷(125×8),

=8000÷1000,

=8;

(2)102×43,

=100×43+2×43,

=4300+86,

=4386;

(3)325+143+75+57,

=(325+75)+(143+57),

=400+200,

=600;

(4)278-79-21.

=278-(79+21),

=278-100,

=178.

单项选择题 A1/A2型题
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