8+6.2= 8.1÷3×2= 568-198= 0.65÷1.3= 75×10%= 查看更多

 

题目列表(包括答案和解析)

计算(能简算的要简算)  
99×8.4+0.84         
(37.62+20.76)÷0.042
4.8×6.2÷12.4    
3.75÷[0.03×(1.34-0.84)].

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(1)9
2
3
-99
2
3
+999
2
3
=
(2)(
3
8
+
1
6
-
2
9
)×72
=
(3)4.9×5
1
2
+4.9+3
1
2
×4.9
=
(4)9999+99992=
(5)11×12×13-12×13-260=
(6)101×99×999+999=
(7)5
1
4
×3.8+6.2×5.25
=
(8)1880×199.9-1999×187.9=

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x+3.8+6.2=x+(3.8+6.2)
(判断对错)
改正:
正确
正确

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直接写出得数.
25×4=
84÷6= 38×6= 2.5×4=
8.4÷6= 3.8×6= 2.5×0.4= 8.4÷0.6=
3.8×0.6= 2.5×0.04= 8.4÷0.06= 3.8×0.06=

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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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