问题 解答题
开动脑筋,用简便方法计算
25×37×4
125×7×825×43×877×50×6.
答案

(1)25×37×4,

=25×4×37,

=100×37,

=3700;

(2)125×7×8,

=125×8×7,

=1000×7,

=7000;

(3)25×43×8,

=25×8×43,

=200×43,

=8600;

(4)77×50×6,

=77×(50×6),

=77×300,

=23100.

单项选择题 A1/A2型题
单项选择题 B1型题