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.