计算下面各题,能简便的用简单运算(1)27×86+86×73 (2)20...

2024-11-24 21:47:12
推荐回答(1个)
回答1:


(1)27×86+86×73,
=(27+73)×86,
=100×86,
=8600;

(2)201-(960+627)÷23,
=201-1587÷23,
=201-69,
=132;

(3)(250-72)×20,
=178×20,
=3560;

(4)199×49+49,
=(199+1)×49,
=200×49,
=9800;

(5)76×125,
=(80-4)×125,
=80×125-4×125,
=10000-500,
=9500;

(6)25×[480-÷16],
=25×[480-896÷16],
=25×[480-56],
=25×424,
=10600.