问题 解答题
计算下面各题.
1
3
÷
5
6
×
10
9
7
8
-
5
12
)×48
4.74×+5.26×80%
答案

(1)

1
3
÷
5
6
×
10
9

=

2
5
×
10
9

=

4
9

(2)(

7
8
-
5
12
)×48

=

7
8
×48-
5
12
×48

=42-20

=22;

(3)4.74×80%+5.26×80%

=(4.74×+5.26)×80%

=10×80%

=8.

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