问题 解答题
(1)88-16×5+78(2)2.4×1.5+4.5÷0.75
(3)
1
6
+
2
7
÷
3
7
(4)
3
5
÷[
3
11
×(0.4+
1
3
)].
答案

(1)88-16×5+78,

=88-80+78,

=8+78,

=86;

(2)2.4×1.5+4.5÷0.75,

=3.6+6,

=9.6;

(3)

1
6
+
2
7
÷
3
7

=

1
6
+
2
3

=

5
6

(4)

3
5
÷[
3
11
×(0.4+
1
3
)],

=

3
5
÷[
3
11
×
11
15
],

=

3
5
÷
1
5

=3.

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