$$\int_0^4\int_0^5 x y \, dx \, dy = \,?$$
$$\int_0^1 x e^x dx = \,?$$
$$ y(x) = tan(x) + x $$
$$ y'\left(\frac{\pi}{3}\right)=\,?$$
$$
\left|
\begin{matrix}
4 & 0 & 0 \\
2 & 6 & 4 \\
0 & 4 & 6 \\
\end{matrix}
\right|
=\,?
$$
$$\sum_{n=0}^\infty 3 \cdot \left(\frac{-1}{2}\right)^n$$
$$x^5 + 10 x^4 + 10 x^3 + 100 x^2 + 9 x + 90 = 0$$
$$x =\,?$$
$x^2 + 120x + 3600 = 0$
$$x =\,?$$
$$7x + 4 = 46$$
$$x =\,?$$
$$3^5 =\,?$$
$$13 \cdot 7 =\,?$$
$$19 + 27 =\,?$$
$$4 + 3 =\,?$$