试题:
直接写数对又快:
(1)11
7
8
-6
1
3
-1
2
3
=
(2)
3
4
+9
3
4
+99
3
4
+999
3
4
+1
=
(3)2004÷2004
2004
2005
=
(4)824
8
11
÷8
=
(5)99
97
98
÷
1
49
=
(6)0.1÷
1
1000
×1%
=
(7)[1.9-(1.9-1.9)]÷3.8=(8)0.75×3.5+350%×
3
8
-3
1
2
×0.125=

答案:

我来补答
(1)11
7
8
-6
1
3
-1
2
3
=3
7
8
(2)
3
4
+9
3
4
+99
3
4
+999
3
4
+1
=1111
(3)2004÷2004
2004
2005
=
2005
2006
(4)824
8
11
÷8
=103
1
11
(5)99
97
98
÷
1
49
=4899
1
2
(6)0.1÷
1
1000
×1%
=1
(7)[1.9-(1.9-1.9)]÷3.8=
1
2
(8)0.75×3.5+350%×
3
8
-3
1
2
×0.125=3.5
 
 
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