0
Still curious? Ask our experts.
Chat with our AI personalities
Ezra
Steve
ReneAdd your answer:
Earn +20 pts
How do you find the squareroot of a number?
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.
Why is 90 divisible by 10?
90 is divisible by 10 because it has a 0 as its end digit. Any number with a zero as the end digit gives an integer result when dividing by 10.
What must a four digit number end in to be divisible by 400?
All of the four-digit multiples of 400 end in 00.
What is the value of the underlined digit in the number 410327?
There is no underlined digit. If there was it would be that digit multiplied by 10n-1 where n is the number of the digit as counted from the right hand end, starting at 1.
A decimal number in which a digit or group of digits repeats without end?
a decimal in which a digit or group of digits repeats without end
