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19
×
20
19\times 20
1
9
×
2
0
+
−
.
ln
>
<
×
÷
/
log
≥
≤
(
)
log
x
=
%
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19*20
19*20
19\times 20
Available Methods
Algorithm
Partial Product
Box
1
Use the algorithm method.
1
9
×
2
0
1
3
8
0
2
Therefore,
19
×
20
=
380
19\times 20=380
1
9
×
2
0
=
3
8
0
.
380
380
3
8
0
Done
380
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