问题
解答题
脱式计算.
(76+38×30)÷76
14×[752-(152+28)]
360×[1000÷(408+92)]
600×[(135-45)÷90]
9846-87×(360÷60)
508×345÷(1526-1521)
答案
(1)(76+38×30)÷76
=(76+1140)÷76
=1216÷76
=16;
(2)14×[752-(152+28)]
=14×[752-180]
=14×572
=32032;
(3)360×[1000÷(408+92)]
=360×[1000÷500]
=360×2
=720;
(4)600×[(135-45)÷90]
=600×[90÷90]
=600;
(5)9846-87×(360÷60)
=9846-87×6
=9846-522
=9324;
(6)508×345÷(1526-1521)
=508×345÷5
=175260÷5
=35052.