Evaluate
1005
Factor
3\times 5\times 67
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40+140+20+140+20+140+20+140+25+140+20+140+10+10
Add 20 and 20 to get 40.
180+20+140+20+140+20+140+25+140+20+140+10+10
Add 40 and 140 to get 180.
200+140+20+140+20+140+25+140+20+140+10+10
Add 180 and 20 to get 200.
340+20+140+20+140+25+140+20+140+10+10
Add 200 and 140 to get 340.
360+140+20+140+25+140+20+140+10+10
Add 340 and 20 to get 360.
500+20+140+25+140+20+140+10+10
Add 360 and 140 to get 500.
520+140+25+140+20+140+10+10
Add 500 and 20 to get 520.
660+25+140+20+140+10+10
Add 520 and 140 to get 660.
685+140+20+140+10+10
Add 660 and 25 to get 685.
825+20+140+10+10
Add 685 and 140 to get 825.
845+140+10+10
Add 825 and 20 to get 845.
985+10+10
Add 845 and 140 to get 985.
995+10
Add 985 and 10 to get 995.
1005
Add 995 and 10 to get 1005.
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}