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题目列表(包括答案和解析)

直接写数对又快:
(1)47.23-(7.23+5.89)=
(2)
11
10
-
1
4
-
3
4
=
(3)12.5×8.8÷11= (4)(
2
3
+
1
2
)×12=
(5)
2
5
×
1
5
+40%×
4
5
=
(6)
5
9
÷5+5÷
5
9
=
(7)99+999+9999+99999= (8)
3
8
×1
1
4
+1.25×
5
8
+125%=

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直接写数对又快
66+8=
3.8+6.2=
4
9
×
3
8
=
47-8= 3.8÷0.19=
12÷
3
7
=
56÷4= 24×0.5= 1-
3
11
=
471-299=
1÷0.25=
3
7
×
5
6
=
600÷5= 8-0.8=
1
3
+
1
6
=
1.06×8×12.5= 1.5×0.6=
1
5
-
1
7
=
6.6+4= 1.5÷0.3=
1
2
÷
3
4
=
1-0.05=
2
9
×4=
2
9
+
2
3
=
6
7
÷3=
1
2
-
1
8
=
2-
4
9
-
5
9
=
5
9
+
1
3
=
1-
1
5
÷
3
5
1+
7
8
÷
7
8
=

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直接写数对又快!
83-57= 1-0.74= 0.25×40= 2-
2
5
=
4
9
=
1
3
-
1
4
=
1.25×3×8= 32÷53×0=
(0.18+0.9)÷9= 0.9+99×0.9=

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直接写数对又快
2
3
×
3
2
=
4×0.8×2.5×12.5=
112×(24-4
4
5
)÷2.4
=
6
7
10
×121+444÷
40
99
+67×21.2
=
13
4
19
+86
15
19
×0.25
+0.625×86
15
19
×0.125
=

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直接写数对又快!
529+198=
992= 305-199= 2.05×4=
8×12.5%=
5
4
+
4
5
×0=
3
4
÷
3
4
÷
4
3
=
3
4
÷
1
6
+0.75×8=

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