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\[2\times 3.14\]
+
−
.
ln
>
<
×
÷
/
log
≥
≤
(
)
log
x
=
%
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2*3.14
2*3.14
2\times 3.14
1
Use the algorithm method.
2
×
3
.
1
4
0
.
0
8
0
.
2
0
6
.
0
0
6
.
2
8
2
Therefore,
2
×
3.14
=
6.28
2\times 3.14=6.28
2
×
3
.
1
4
=
6
.
2
8
.
6.28
6.28
6
.
2
8
Done
6.28
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