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
5
-(
4
5
-
1
2

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.

配伍题 B型题
单项选择题