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看谁算得快.1-13+23=7×(17+18)=1-45÷45=89÷27×0=10.1×99-9.9=4511-(511+0.5)=149149:17=170.32-0.22=
题目详情
看谁算得快. 1-
| 7×(
| 1-
|
| ||||||||||||||||
10.1×99-9.9= | 4
|
| 0.32-0.22= |
看谁算得快. 1-
| 7×(
| 1-
|
| ||||||||||||||||
10.1×99-9.9= | 4
|
| 0.32-0.22= |
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▼优质解答
答案和解析
1-
+
=
, 7×(
+
)=1
, 1-
÷
=0,
÷
×0=0, 1-
+
=
, 1-
+
=
,
1 1 13 3 3+
=
,
2 2 23 3 3=
,
4 4 43 3 3, 7×(
+
)=1
, 7×(
+
)=1
,
1 1 17 7 7+
)=1
,
1 1 18 8 8)=1
,
7 7 78 8 8, 1-
÷
=0, 1-
÷
=0,
4 4 45 5 5÷
=0,
4 4 45 5 5=0,
÷
×0=0,
÷
×0=0,
8 8 89 9 9÷
×0=0,
2 2 27 7 7×0=0, 10.1×99-9.9=990, 4
-(
+0.5)=3.5,
:
=
, 0.32-0.22=0.05. 10.1×99-9.9=990, 10.1×99-9.9=990, 4
-(
+0.5)=3.5, 4
-(
+0.5)=3.5,
5 5 511 11 11-(
+0.5)=3.5,
5 5 511 11 11+0.5)=3.5,
:
=
,
:
=
,
1 1 149 49 49:
=
,
1 1 17 7 7=
,
1 1 17 7 7, 0.32-0.22=0.05. 0.322-0.222=0.05.故答案为:
,1
,0,0,990,3.5,
,0.05.
4 4 43 3 3,1
,0,0,990,3.5,
,0.05.
1 1 18 8 8,0,0,990,3.5,
,0.05.
1 1 149 49 49,0.05.
1-
| 7×(
| 1-
|
| ||||||||||||||||||||
10.1×99-9.9=990, | 4
|
| 0.32-0.22=0.05. |
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