问题 解答题
脱式计算.
1624÷56×12

208×(10.8-6.8)÷5.2
13.4-(
3
5
+24÷
12
5
2
3
×18÷9×
1
4
7
8
+
7
12
-
5
6
)×96
375+450÷18×25.
答案

(1)1624÷56×12

=29×12

=348

(2)208×(10.8-6.8)÷5.2

=208×4÷5.2

=832÷5.2

=160

(3)13.4-(

3
5
+24÷
12
5

=13.4-(

3
5
+10)

=13.4-10.6

=2.8

(4)

2
3
×18÷9×
1
4

=12÷9×

1
4

=

4
3
×
1
4

=

1
3

(5)(

7
8
+
7
12
-
5
6
)×96

=

7
8
×96+
7
12
×96-
5
6
×96

=84+56-80

=140-80

=60

(6)375+450÷18×25

=375+25×25

=375+625

=1000.

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