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=
看谁算得快. 1-+= | 7×(+)= | 1-÷= | ÷×0= |
10.1×99-9.9= | 4-(+0.5)= | := | 0.32-0.22= |
看谁算得快. 1-+= | 7×(+)= | 1-÷= | ÷×0= |
10.1×99-9.9= | 4-(+0.5)= | := | 0.32-0.22= |
看谁算得快. 1-+= | 7×(+)= | 1-÷= | ÷×0= |
看谁算得快. 1-+= | +=1 |
1 | 3 |
3 | =2 |
2 | 3 |
3 | 7×(+)= | +)=1 |
1 | 7 |
7 | )=1 |
1 | 8 |
8 | 1-÷= | ÷=4 |
4 | 5 |
5 | =4 |
4 | 5 |
5 | ÷×0= | ÷×0=8 |
8 | 9 |
9 | ×0=2 |
2 | 7 |
7 | 10.1×99-9.9= | 4-(+0.5)= | := | 0.32-0.22= |
10.1×99-9.9= | 4-(+0.5)= | -(+0.5)=5 |
5 | 11 |
11 | +0.5)=5 |
5 | 11 |
11 | := | 1 |
1 | 49 |
49 | 1 |
1 | 49 |
49 | =1 |
1 | 7 |
7 | 1 |
1 | 7 |
7 | 0.32-0.22= | 22
答案和解析
1-+=, | 7×(+)=1, | 1-÷=0, | ÷×0=0, |
10.1×99-9.9=990, | 4-(+0.5)=3.5, | :=, | 0.32-0.22=0.05. |
1-+=, | 7×(+)=1, | 1-÷=0, | ÷×0=0, |
1-+=, | 1-
+=,1 |
1 | 1
3 |
3 | 3+
=,2 |
2 | 2
3 |
3 | 3=
,4 |
4 | 4
3 |
3 | 3,
7×(+)=1, | 7×(
+)=1,1 |
1 | 1
7 |
7 | 7+
)=1,1 |
1 | 1
8 |
8 | 8)=1
,7 |
7 | 7
8 |
8 | 8,
1-÷=0, | 1-
÷=0,4 |
4 | 4
5 |
5 | 5÷
=0,4 |
4 | 4
5 |
5 | 5=0,
÷×0=0, | ÷×0=0,8 |
8 | 8
9 |
9 | 9÷
×0=0,2 |
2 | 2
7 |
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 | 5
11 |
11 | 11-(
+0.5)=3.5,5 |
5 | 5
11 |
11 | 11+0.5)=3.5,
:=, | :=,1 |
1 | 1
49 |
49 | 49:
=,1 |
1 | 1
7 |
7 | 7=
,1 |
1 | 1
7 |
7 | 7,
0.32-0.22=0.05. | 0.3
22-0.2
22=0.05.故答案为:
,1,0,0,990,3.5,,0.05. 4 |
4 | 4
3 |
3 | 3,1
,0,0,990,3.5,,0.05. 1 |
1 | 1
8 |
8 | 8,0,0,990,3.5,
,0.05. 1 |
1 | 1
49 |
49 | 49,0.05.
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