题目内容

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
5
-(
4
5
-
1
2

4.68×78+4.68×22.
(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.
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