13.8.0.20.19 < < < < < 查看更多

 

题目列表(包括答案和解析)

按规律填空
(1)0.12,0.23,0.34,0.45,
0.56
0.56
0.67
0.67

(2)19.2,9.6,4.8,2.4,
1.2
1.2
0.6
0.6

(3)1÷37=0.
?
0
2
?
7
   2÷37=0.
?
0
5
?
4
   3÷37=0.
?
0
8
?
1
   4÷37=0.
?
1
0
?
8
      5÷37=
0.
?
1
3
?
5
0.
?
1
3
?
5
    6÷37=
0.
?
1
6
?
2
0.
?
1
6
?
2

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心算
60÷3=________1.4-0.8=________300÷6=________140÷2=________
46+38=________240÷6=________1800÷9=________4200÷7=________
46÷2=________330-70=________125×8=________72÷9=________
606÷3=________150÷5=________630÷9=________300-300÷6=________
16×20=________4.1+0.8=________50×16=________13×3=________
14×20=________0÷11=________20×60=________19×20=________
86-68=________30×12=________20×40=________330-70=________
80×9=________11×60=________12×20=________18×40=________
33×30=________9-4.8=________3.6-1.8=________6.7+2.5=________
24÷4=________80-6=________60÷4=________4+28=________
25+75=________0.6+1.5=________15×50=________141÷3=________
91÷7=________3×4×5=________137-67=________380×10=________
50×50=________26÷2=________6.2+3.9=________783÷6=________
804÷2=________7×0=________780-70=________2407+3=________
707÷7=________760-250=________8.4-7.5=________147÷7=________.

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8:0.4=
20:1
20:1

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能简便的要简便计算
2.9×1.4+2×0.16        200-(3.05+7.1)×18          2.5×32×1.25
(2.44-1.8)÷0.4×20          48×10.1                3.2×19+3.2.

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0.9÷0.1= 2-2÷3=
1
3
=
1-
1
2
-
1
3
=
190÷25÷4= 0.55×20= 1.2-
1
5
=
2.7×
2
3
=

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