• Calendar
• Clock, formulas for 0 degree, all degree, mirror image
• Average Ap\Gp
• Factors formula don't forget 1 is common
• Boat and stream formula understand
• Pie chart into percentage: degree % (multiple) by 18\5 same as the Train and speed

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• Adding+1 at the end
• Removing (-1) from

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• What all things can be written as: N(1+2+3+N-1)
• Odd number and even number visualisation
• Write odd or even number in format of 2, 3, 5, 11 any number (especially prime number)
• Dividend= dividers×Quotient+ Remainder
• Highest(x)-lowest(y)= N, Highest(x)+Lowest (y)=R