问题
解答题
计算下面各题,能简算的要简算 14×75-624÷39 (7.6-3.6÷2)×1.5
4.68×78+4.68×22. |
答案
(1)14×75-624÷39,
=1050-16,
=1034;
(2)(7.6-3.6÷2)×1.5,
=(7.6-1.8)×1.5,
=5.8×1.5,
=8.7;
(3)
-(4 5
-4 5
),1 2
=
-4 5
+4 5
,1 2
=0+
,1 2
=
;1 2
(4)4.68×78+4.68×22,
=4.68×(78+22),
=4.68×100,
=468.