问题 解答题
下面算式正确的是(  )
A.37×(9+82)=37×9+82B.45×35+65×45=(35+65)×45
C.23×(3×8)=23×3+23×8
答案

A.37×(9+82),

=37×9+37×82,

=333+3034,

=3367;

B.45×35+65×45,

=(35+65)×45,

=100×45,

=4500;

C.23×(3×8),

=23×3×8,

=69×8,

=552.

故选:B.

配伍题 B型题
单项选择题 A1/A2型题