Evaluate
406.1
Factor
\frac{31 \cdot 131}{2 \cdot 5} = 406\frac{1}{10} = 406.1
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206.46+1.52+1.43+18.49+9.9\times 18
Add 8.23 and 198.23 to get 206.46.
207.98+1.43+18.49+9.9\times 18
Add 206.46 and 1.52 to get 207.98.
209.41+18.49+9.9\times 18
Add 207.98 and 1.43 to get 209.41.
227.9+9.9\times 18
Add 209.41 and 18.49 to get 227.9.
227.9+178.2
Multiply 9.9 and 18 to get 178.2.
406.1
Add 227.9 and 178.2 to get 406.1.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
699 * 533
Matrix
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}