Evaluate
64.3
Factor
\frac{643}{2 \cdot 5} = 64\frac{3}{10} = 64.3
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15.96+9.98+11.98+8.4+17.98
Add 5.98 and 9.98 to get 15.96.
25.94+11.98+8.4+17.98
Add 15.96 and 9.98 to get 25.94.
37.92+8.4+17.98
Add 25.94 and 11.98 to get 37.92.
46.32+17.98
Add 37.92 and 8.4 to get 46.32.
64.3
Add 46.32 and 17.98 to get 64.3.
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}