89
89
121
The number 64 is equal to ±8 squared and 4 cubed.
Let the first and third digits be equal. Choose any other number as the second digit. 202, 919, etc.
Write them as decimals, and compare. If the first digit of two numbers is equal, compare the second digit; if the second digit is equal, compare the third digit, etc.
There is no 1-digit number that is equal to 14 and 28.
N squared would be used to find the square root of a number or numbers. In order to find the number of three digit numbers such that the sum of the square results of any two digits are equal to the third digit the use of the formula (HOE)squared=Hsquared*10000+2HE*100+Esquared is needed.
Ignore the last two digits of the number called out by the spectator and choose the memorised square which is just lower (or equal) to the remaining number. The corresponding square root is the first digit. of your answer Now consider the last digit of the number called out by the spectator. If this is 0 or 5, then you immediately know that the last digit of your answer is also 0 or 5. In all other cases, the last digit of the number called out will indicate two possible values for the last digit of the square root. For example, if the last digit is 9, then the square root may end in either 3 or 7.
23?
1
24
Please compare the first digit after the decimal point with the first digit. If they are equal, compare the second digit with the second digit, etc. 0.1 is equivalent to 0.100.