问题 解答题
5.72-0.68-1.32
256+99×256
3
10
+
53
100
+
7
100

2210÷﹙29+36﹚×35.
答案

(1)5.72-0.68-1.32

=5.72-(0.68+1.32),

=5.72-2,

=3.72;

(2)256+99×256

=256×(99+1),

=256×100,

=25600;

(3)

1
10
+
53
100
+
7
100

=

1
10
+(+
53
100
+
7
100
),

=

1
10
+
6
10

=

7
10

(4)2210÷﹙29+36﹚×35

=2210÷65×35,

=34×35,

=1190.

单项选择题
单项选择题