Use only addition and multiplication symbols among the digits on the left side of the equation to make this mathematical sentence true.

$${\mathtt{9}}{\mathtt{\,\times\,}}{\mathtt{8}}{\mathtt{\,\small\textbf+\,}}{\mathtt{7}}{\mathtt{\,\small\textbf+\,}}{\mathtt{6}}{\mathtt{\,\small\textbf+\,}}{\mathtt{5}}{\mathtt{\,\small\textbf+\,}}{\mathtt{4}}{\mathtt{\,\small\textbf+\,}}{\mathtt{3}}{\mathtt{\,\small\textbf+\,}}{\mathtt{2}}{\mathtt{\,\small\textbf+\,}}{\mathtt{1}} = {\mathtt{100}}$$

Wow!!!...nice Tiddle   .....!!!!

Thank you!         

Hee's another possibility......

[(1 + 9) + (7 + 8) ] * [(6-5)+(4-3)]*2 =

[10 + 15] * [ (1) + (1)]*2 =

[25] * [2]*2 =

[25] * [4) =

100

P.S. - I still like yours better......

Not to be mean but yours is not a possiblity because you used subtraction and you can only use addition and multiplication.

You're correct, Tiddle.....I forgot about that detail......mine would be "thrown out of the club".......your answer still reigns supreme  !!!!