Answers

2015-07-29T21:55:23+08:00
If you don't put any sign, it's already multiplication.
(50)(50) = 2500

You can also use a bullet.
50 • 50 = 2500

You can also use this sign. (don't know what it's called though)
50 ∗ 50 = 2500
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that's asterisk.
I don't think so. Look at the difference (asterisk - *, other sign - ∗)
oh well, In math, I wanna call it as an asterisk. In computer terminology, it is called splat. Other term is pound. Satisfied now?:)
we have same answer I know that too
2015-07-29T23:20:51+08:00
It should be the Close and Open Parenthesis () or this one ●
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