问题 解答题

287+74×9+328

198÷9+16×7

(169-34)×(52+87)

(652-89)×72-929.

答案

(1)287+74×9+328

=287+666+328

=1281;

(2)198÷9+16×7

=22+112

=134;

(3)(169-34)×(52+87)

=135×139

=18765;

(4)(652-89)×72-929

=563×72-929

=40536-929

=39607.

选择题
单项选择题