问题
解答题
计算下面各题.能简算的要简算.
315-164÷4
51.97-18.66-1.34
79.08-12.6+0.92.
答案
(1)315-164÷4,
=315-41,
=274;
(2)51.97-18.66-1.34
=51.97-(18.66+1.34),
=57.97-20,
=37.97;
(3)79.08-12.6+0.92
=79.08+0.92-12.6,
=80-12.6,
=67.4.