gliu1

32+64=96. Easy.

13-9=4 dogs. So easy. 

I don't know what do you mean, but here is the dictionary definition of happy:

$${\mathtt{49}}{\mathtt{\,\times\,}}{\mathtt{5}} = {\mathtt{245}}$$

$${\frac{{\mathtt{245}}}{{\mathtt{8}}}} = {\mathtt{30.625}}$$

$${\frac{{\mathtt{30.625}}}{{\mathtt{2}}}} = {\frac{{\mathtt{245}}}{{\mathtt{16}}}} = {\mathtt{15.312\: \!5}}$$

There's your answer.

$${\frac{{\mathtt{9}}{\mathtt{\,\times\,}}{\mathtt{9}}{\mathtt{\,\times\,}}{\mathtt{8}}{\mathtt{\,\times\,}}{\mathtt{0}}{\mathtt{\,\times\,}}{\mathtt{6}}{\mathtt{\,\times\,}}{\mathtt{5}}{\mathtt{\,\times\,}}{{\mathtt{6}}}^{{\mathtt{7}}}{\mathtt{\,\times\,}}{\mathtt{4}}{\mathtt{\,\times\,}}{\mathtt{3}}{\mathtt{\,\times\,}}{\mathtt{9}}{\mathtt{\,\times\,}}{\mathtt{4}}}{{\mathtt{3}}}}{\mathtt{\,\small\textbf+\,}}{\mathtt{2}} = {\mathtt{2}}$$

??

$$\left({\mathtt{3.081}}{\mathtt{\,\times\,}}{\mathtt{102}}{m}\right){\mathtt{\,\times\,}}\left({\mathtt{0.025}}{\mathtt{\,\times\,}}{\mathtt{10}}{\mathtt{\,-\,}}{\mathtt{1}}\right) = -{\mathtt{235.696\: \!5}}{m}$$ I'm not sure about the value of m

$${\mathtt{55}}\%{\mathtt{\,\times\,}}{\mathtt{140}} = {\mathtt{77}}$$

Good luck with that

$${\sqrt{{\mathtt{20}}}} = {\mathtt{4.472\: \!135\: \!954\: \!999\: \!579\: \!4}}$$

Because that's the way it is. See? That is what happens.$${\frac{\left(-{\mathtt{45}}\right)}{\left(-{\mathtt{54}}\right)}} = {\frac{{\mathtt{5}}}{{\mathtt{6}}}} = {\mathtt{0.833\: \!333\: \!333\: \!333\: \!333\: \!3}}$$

Thank you. A point for you too.